D) 164.10 g/mol B) 2, 3, 2, 2 D) Ag3O D) 70.1 A) 28.01 d) a $10-\mathrm{kg}$ cannonball with a speed of $120 \mathrm{~m} / \mathrm{s}$, Find the amount (mol) of one substance from the volume and molarity. With potassium-t-butoxide In 1-methyl-pyrrolidin-2-one at 25; for 4h; 79%: With potassium-t-butoxide In 1-methyl-pyrrolidin-2-one at 20; for 4h; . contains 6.02 x 1022 molecules O It contains one sulfur atom none of the answers are correct. A) color change when chemicals are contacted with each other D) 12 E) none of the above, In comparing a balloon containing 25 grams of helium to a balloon containing 25 grams of neon, which one of the following statements is TRUE? A) CrO One mole of potassium sulfate contains: 4 moles of oxygen. C) single displacement D) 140 History. A) H2O (l) Which means, each mole of Potassium sulphate contains two moles of Potassium ions. 1 mole of N2 contains 6.0221023 N2 molecules. C) 295.1 2 Na(s) + Cl2(aq) 2NaCl(s) Determine the empirical formula of ascorbic acid if it is composed of 40.92% carbon, 4.58% hydrogen, and 54.50% oxygen. C) 28.0 g N2 Want this question answered? Two moles of potassium can be converted by dividing the mass of the pot by the mass of the pot. Find the electric field at the following distances from the sphere's center: Assume that a woman must breathe a constant mass rate of air to maintain her metabolic processes. B) the molar mass of all the compounds. D) 32.0 g O2 B) when an alkali metal reacts with an alkaline earth metal One mole of water contains 1/2 mole of oxygen atoms. D) 2, 1, 1, 2 Which contains the smallest number of moles? C) H+ + OH- H2O The symbol of mole is mol. E) none of the above, Vitamin C is known chemically by the name ascorbic acid. and ie f-butyl 2,6-diazaspiro- [3.3]heptane-2-carboxylate (23.6 mg, 49.1 mol, 0.6 eq. B) heat C) single displacement E) none of the above, Bananas cost 33 per pound. E) none of the above, ) When solid NaCl is stirred into water, which of the following is NOT true? D) N4H4 For acids we define their basicity as the n factor i.e. B) 158.9 D) 32.07 B) 35.5 Fig.1 Experimental ferrous ion concentration ( ) and simulated data (solid line) during the irradiation process at pH 3.0 in: (A) the absence of chloride or sulfate ions; (B) [Cl-] = 0.75 mol L-1, absence of sulfate ions; (C) [SO 4 2] = 1.8 mmol L-1, absence of chloride ions, and (D) at pH 1.0 with [Cl ] = 0.75 mol L-1, absence of sulfate ions. E) none of the above A) 2 $$, Give an example of a molecule or ion having a formula of each of the following types and structures. In chemistry, we use the unit 'mole' to represent the amount of substance containing 6.02 10 23 particles. An empirical formula represents a molecule. B) 2, 1, 1, 2 B) AgO2 2. E) none of the above, Bauxite is an ore that contains the element aluminum. 96.09 g/mol. 4 moles of oxygern B. C) 21.4 B) 60.7 D) Cr2O3 A) CHO The amount went up by 8.02 g. per mole. B) 2, 1, 2, 2 B) 88.05 g/mol C) 0.142 C) single displacement Label: PSORIZIDE ULTRA- potassium bromide, nickel sulfate, and zinc bromide tablet ___nitric acid + ___sodium hydroxide ___sodium nitrate + ___water A) the atomic mass of all the elements involved. A) copper carbonate A 42.7 gram sample of potassium nitrate contains how many grams of potassium? D) This scenario cannot happen because gases have no mass. He or she would either excise aspect of the mole, ie a modest tissue sample for . E) 2Na + H2O Na2OH (aq) + H (g) E) none of the above, What type of a reaction occurs when a hydrochloric acid solution is mixed with a sodium bicarbonate solution? 3.5. C) Pb How many moles are there in 17.5 grams of sodium? What is the molecular formula of a compound given the molar mass of the compound is 30.04 gram and the empirical formula is NH? Which of the following statements about the mole is FALSE? What is the value of n necessary to find the molecular formula? One mole of boron has a mass of ________ g. One mole of oxygen gas has a mass of ________ g. What is the mass in grams of 5.40 moles of lithium? one mole of potassium sulfate contains: answer choices . 2. C) NO3- E) none of the above, What are the coefficients for the following reaction when it is properly balanced? B) solid formation when chemicals are contacted with each other D) when one substance forms a solid B) CH3O2 E) none of the above, How many moles are there in 17.5 grams of sodium? C) Mn2O3 D) H2 (g) E) none of the above, What is the mass percent of oxygen in sodium oxide? A) 2 C) 51.6 A) SO42- E) Cs. 16.0 g B. B) FeCl2 C) FeCl3. D) Sodium chloride is insoluble in water. Which ion would NOT be present in the complete ionic equation? You'll get a detailed solution from a subject matter expert that helps you learn core concepts. B) 3.34 1023 Experts are tested by Chegg as specialists in their subject area. C) HO D) 11.4 What is the correct value for Avogadro's number? How many atoms are in 15.6 grams of silicon? C) CrO3 B) C3H21 A) 2.64 1026 A) molecular only. Tags: Question 18 . E) none of the above, Which of the following is already in its empirical formula? E) None of, Identify the oxidation-reduction reactions among the following: E) none of the above, How many moles of potassium are in 156.4 g? These drain into \_\_\_\_\_\_\_\_\_\_ ducts that converge toward the nipple. E) none of the above, How many moles of bromine gas are in 37.7 grams? 5. 164.10 g/mol. A) iron(III) chloride. B) 4 moles of hydrogen atoms. A nonconducting sphere of radius 6.00cm6.00 \text{~cm}6.00cm has a uniform volume charge density of 450nC/m3450 \text{nC} / \text{m}^3450nC/m3. 22.4. Request Answer. 10 grams Potassium Sulfate to mol = 0.05739 mol. D) 4NH3 + 14O2 4NO2 + 6H2O C) Pb(NO3)2 Given the following percent composition, calculate the molecular formula: An unknown acid has a molar mass of 60.05 g/mol. B) 12.8 Calculate the molar mass of calcium nitrate. B) Na. C) C2H3O2 D) 1, 1, 2, 2, 17) When the equation __Ca3N2 + __H2O __Ca(OH)2 + __NH3 is balanced, the coefficient of H2O is: D) double-displacement E) none of the above, Which of the following compounds has the highest mass percent of "O"? How many moles are there in 82.5 grams of iron? What is the value of n necessary to find the molecular formula? D) 37.1 2 moles of sulfur C. 1 mole of potassium D. 3 moles of potassium E. none of the above 2. C) the molar mass of hydrogen peroxide. B) 25.8 E) none of the above, One mole of ammonium nitrate contains: C) Mg2+(aq) + 2NO3-(aq) Mg(NO3)2(aq) D) the number of moles of hydrogen peroxide in 1.00 g of the substance. One mole of boron has a mass of ________ g. One mole of oxygen gas has a mass of ________ g. What is the mass in grams of 5.40 moles of lithium? How many moles of Pb are in 4.71 1021 Pb atoms? Solved One mole of ammonium nitrate contains: Solved If a sample of carbon dioxide contains 3.8 moles of oxygen atoms, how many moles You have 10.0 g each of Na, C, Pb, Cu and Ne. D) 32.6 e) a proton with a mass of $2 \cdot 10^{-27} \mathrm{~kg}$ and a speed of $2 \cdot 10^8 \mathrm{~m} / \mathrm{s}$. B) 48.4 D) 34.5 Which contains the smallest number of moles? B) 1 and 3 only C) 306.2 g/mol Which of the following statements is FALSE? D) the number of moles of all reactants and products. B) 2HCl + K(OH)2 2H2O + KCl2 A mole is defined as the amount of substance containing the same number of discrete entities (atoms, molecules, ions, etc.) A) FeCl B) H2O2 How many moles of iron ions are in the solution? Potassium sulfate has a molar mass of 174.259 grams per mole. One mole of potassium sulfate (K2S04) contains: A. A) 78.05 g/mol B) 88.05 g/mol C) 96.09 g/mol D) 112.09 g/mol E) none of the above 34) Calculate the molar mass of calcium nitrate. B) 3.7 x 10-25 E) none of the above, An estrogen compound with the empirical formula C12H17O2 has a molecular mass of 386.6 g/mol. A) acid-base reaction. Vitamin C is known chemically by the name ascorbic acid. D) strontium carbonate As 1 mole of copper (II)sulfate contains number of oxygen atoms. 2 Mg(s) + O2(g) 2 MgO It contains one sulfur atom. Brent L. Iverson, Christopher S. Foote, Eric Anslyn, William H. Brown. C) 2 moles of sulfur. D) barium chloride. A) 2.14 x 1024 D) 6.022 1023 You have 10.0 g each of Na, C, Pb, Cu and Ne. how many mole of fluorine are in 3.2 moles of xenon hexafluoride ? \text{$\mathrm{SO}_2 \mathrm{Cl}_2+\mathrm{HI} \longrightarrow \mathrm{H}_2 \mathrm{~S}+\mathrm{H}_2 \mathrm{O}+\mathrm{HCl}+\mathrm{I}_2$} D) 79.9 C) C3H6O3 D) Sodium chloride is insoluble in water. C) C2H4O2 D) Mg2O The molar mass of this compound is 34.02 g/mol. $5 Load your coursepivot wallet using PayPal or cards and purchase this answer to view it. A) AgO D) 3.11 x 1024 If 3.011 1023 molecules have a mass of 20.04 grams, what is the molar mass of this substance? 4 moles of oxygern B. C) 5.60 D) 438 E) none of the above, Given that sodium chloride is 39.0% sodium by mass, how many grams of sodium chloride are needed to have 950 mg of Na present? E) none of the above, An iron ore sample is found to be 35.00% Fe by mass. What does one mole of potassium sulfate contain? The only difference is in step 2 you convert volume of reactant (or product) to moles. 16.0 g B. If 2.01 atoms of an element from Group IA of the periodic table has a mass of 7.675 grams, this element is most likely: How many moles of Cu are in 1.48 1025 Cu atoms? Thus, 2.5L of 0.200M K 2SO 4 contains (2 2.5 0.200) that is 1 mole of Potassium ions B) 2 moles of sulfur. Given the following percent composition, what is the molecular formula? B) SO2 (g) 1. B) 9.91 1025 of O2 is: An iron chloride compound contains 55.85 grams of iron and 106.5 grams of chlorine. E) none of the above, A 15.5 gram sample of diphosphorous pentoxide contains how many grams of phosphorous? D) 6, 1, 3, 2 C) Mg2O3 E) none of the above, Calculate the molar mass of calcium nitrate. C) 35.1 D) 6.02 x 1023 A) 136.03 g/mol D) 11.2 13) One mole of potassium sulfate contains: 13) A) 4 moles of oxygen. B) 1 B) 3 E) none of the above, 26) All of the following compounds are soluble in water EXCEPT: B) The solution will conduct electricity. D ) 11.2. The chemical formula CH2O can be classified as: A chromium oxide compound contains 104.0 grams of chromium and 48.0 grams of oxygen. B) MnO2 A) NH c. It has a molar mass of 174.3g.. Which of the following is NOT typically a sign of a chemical reaction? Which contains the smallest number of moles? B) CHO2 C) The mass of 1 mole of carbon is the same as the mass of 1 mole of magnesium. What is the mass of 0.560 moles of chlorine gas? A) oxidation-reduction reaction. C) C2H7 Calculate the molar mass of calcium nitrate. A 15.5 gram sample of diphosphorous pentoxide contains how many grams of phosphorous? If you obtained 108 grams of aluminum from an ore sample that initially weighed 204 grams, what is the mass percent of aluminum in this bauxite ore? You have 10.0 g each of sodium, iron, silver, zinc and neon. The concentration for the chloride is the same as before. D) All of 1, 2, and 3 Molar mass (MM) is ALWAYS equal to ONE mole! C) 8 B) an ionic compound with water dissolved in it. 32.0 g C. 6.022 x 1023 g D. 8.0 g E. none of the above 3. This is equal to the weight of 20. B) lithium carbonate 4 moles of oxygen. D) 112.09 g/mol The ion that has 14 protons and 18 electrons is: A. Si4- B. Si4- C. N4+ D. N4-. 1.69 C. 6.76 D. 13.5 E. none of the above 5. Nanoscale graphene-based materials (GBMs) enable targeting subcellular structures of the nervous system, a feature crucial for the successful engineering of alternative nanocarriers to deliver drugs and to treat neurodisorders. C) C0.5H0.5O1 E) All of the statements are true. Potassium metal reacts rapidly with atmospheric oxygen to form flaky white potassium peroxide in only seconds of exposure. A) Li. B) acid-base neutralization 12.8. D) There are more atoms in 1 mole of magnesium than in 1 mole of carbon. Determine the correct empirical formula of a compound containing 26.68% carbon, 2.24% hydrogen, and 71.08% oxygen. D) The molecular formula can be the same as the empirical formula in some situations. C) 2 B) 1 and 3 only D) 3 moles of potassium E) none of the above 14) 14) The oxygen-to-hydrogen mass ratio of water is always 80 is an example of what fundamental law? it. A) synthesis/combination A) 4 moles of oxygen. Potassium is a silvery-white metal that is soft enough to be cut with a knife with little force. Solid barium A: Concept based on the solubility product of sparingly soluble salts. A) 40.08 g/mol D) All of A, B, and C. E) None of A, B, and C. 32) One mole of potassium sulfate contains: A) 4 moles of oxygen. 96.09 g/mol. D) 16 A) The sodium chloride solid has dissociated into its component ions. C) O2- Which of the following statements about writing molecular, complete and net ionic equations is FALSE? One mole of potassium sulfate (K2S04) contains: A. E) none of the above, Several grams of sodium chloride are stirred into a glass of water and are no longer visible to the eye. B) 4 It contains six atoms in total. How many moles of cations are in 1.45 mol K2SO4? D) Rb. A) Pb2+, NO3- A) C2H3O2 B) 2.84 1045 Expert Answer 100% (1 rating) 1 mol of CuSO4 contains 6.0221 View the full answer Previous question Next question D) double-displacement (a) AB^-4 (tetrahedral), (b) AB2 (linear), (c) AB^-6 (octahedral), (d) AB^-3 (pyramidal), Name the conservation law that would be violated in each of the following decays: (a) $\pi^{+} \rightarrow \mathrm{e}^{+}+\gamma$ (b) $\Lambda^{0} \rightarrow \mathrm{p}+\mathrm{K}^{-}$ (c) $\Omega^{-} \rightarrow \Sigma^{-}+\pi^{0}$ (d) $\Lambda^{0} \rightarrow \pi^{-}+\pi^{+}$ (e) $\Lambda^{0} \rightarrow \mathrm{n}+\gamma$ (f) $\Omega^{-} \rightarrow \Xi^{0}+\mathrm{K}$ (g) $\Xi^{0} \rightarrow \Sigma^{0}+\pi^{0}$ (h) $\mu^{-} \rightarrow \mathrm{e}^{-}+\gamma$. D) Yes, the formation of a gas is proof a new compound has been made. Q: A solution contains 1.42x10-2 M ammonium sulfate and 5.66x10-3 M ammonium chromate. E) none of the above, How many atoms of lithium are in 18.7 g? Be notified when an answer is posted. a. E) none of the above, What are the coefficients for the following reaction when it is properly balanced? What is the mass of 1.56 1021 atoms of magnesium in grams? B) An empirical formula gives the smallest whole number ratio of each type of atom in a molecule. B) 2.09 1025 E) no reaction, A precipitate is expected to be formed when an aqueous solution of sodium sulfate is added to an aqueous solution of: C) precipitation reaction. C) precipitation reaction E) All of the above are evidence of a chemical reaction. When this compound dissolves in water, which ion listed below would be present in solution? We reviewed their content and use your feedback to keep the quality high. C) 1 mole of potassium. D) Cl-(aq) + Ag+(aq) AgCl(s) E) none of the above, How many molecules of sulfur trioxide are in 78.0 grams? as the number of atoms in a sample of pure 12C weighing exactly 12 g. One Latin connotation for the word "mole" is "large mass" or "bulk," which is consistent with its use as the name for this unit. B) 2.70 x 1024 Which contains the largest number of moles? C) empirical, possibly molecular. D) 3 moles of potassium. D) aluminum sulfate The mass of solution is 1300 g and the mass of H 20 is 20. E) none of the above D ) 4 moles of oxygen . A) potassium acetate A) 2, 1, 1, 3 C) C3H6O2 ___O2 + ___CH4 ___CO2 + ___H2O One half of a mole of atoms would contain how many atoms? A) KO 1. (a)(a)(a) What is the total charge on the sphere? A) PbI2 So four So first for KCIA. A) 33.3 D) All of 1 and 2 only B) 2, 3, 1, 6 A) 34.02 E) none of the above, What is the molecular formula of a compound given the molar mass of the compound is 186.5g and the empirical formula is C2H7? C) 0.429 PUGVIEW FETCH ERROR: 403 Forbidden National Center for Biotechnology Information 8600 Rockville Pike, Bethesda, MD, 20894 USA Contact Policies FOIA HHS Vulnerability Disclosure National Library of Medicine National Institutes of Health = 6.02 10 23 . Which of the following statements about balancing reactions is FALSE? A) 4.00 g H2 A) H2Cl + 2KOH H2O +2KCl Chemistry 1 Answer SCooke May 30, 2018 12.32M Explanation: Molarity is defined in chemistry as the number of moles of a substance per liter of solution. How many grams of ore are needed to obtain of Fe? E) no reaction, Which of the following would NOT be a product from mixing hydrochloric acid with a solution of sodium sulfite? A) C4H14 If a sample of carbon dioxide contains 3.8 moles of oxygen atoms, how many moles of carbon dioxide are in the sample? C) N2H6 A) 0.00782 B) magnesium sulfate If 17.1g of potassium reacts with 14.3g of fluorine, which reactant is the limiting reactant, and what mass of potassium fluoride can theoretically be produced? C) precipitation reaction. E) none of the above, Determine the empirical formula of a compound containing 83% potassium and 17.0% oxygen. B) 3 Calculate the mass of one mol of oxygen gas. This problem has been solved! C) single displacement A) 2 moles of nitrogen atoms. 50 grams Potassium Sulfate to mol = 0.28693 mol. C) (l) So, if have 12 g of #C#, I know, fairly precisely, how many atoms of carbon I have. B) 0.371 What must be supplied for a decomposition reaction to happen? I wish to bye then. E) no reaction, When a solution of MgCl2 and one of AgNO3 are mixed, the net ionic equation is: One Mole Of Potassium Sulfate Contains. How many moles of chloride ions are in the solution? A) 0.2 E) none of the above, The mass of 1 mole of magnesium is greater than the mass of 1 mole of carbon, Which of the following contains 9.02 1023 atoms? Which ion(s) would NOT be present in the net ionic equation? In one mole of. (b) In many medical applications, the value of KwK_{\mathrm{w}}Kw at 37C37^{\circ} \mathrm{C}37C (body temperature) may be more appropriate than the value at 25C25^{\circ} \mathrm{C}25C, 1.010141.0 \times 10^{-14}1.01014. B) 1.69 D) C6H12O6 3. B) 55.85 . An airplane traveling at $510 \mathrm{~km} / \mathrm{h}$ needs to reverse its course. In this case, you know that one formula unit of sodium chloride, NaCl, contains one sodium cation, Na+, and one chloride anion, Cl. What is the mass percent of iron in the ore? B) potassium chloride. A) The mass of 1 mole of carbon is greater than the mass of 1 mole of magnesium. D) double-displacement Rank the following objects from highest to lowest in terms of momentum and from highest to lowest in terms of energy. A) 1297 A) 22.4 what is the molar mass of aluminum sulfate ? The empirical formula for this compound is: See Answer One mole of copper (II) sulfate, CuSO4 , contains ________ O atoms. 100 grams Potassium Sulfate to mol = 0.57386 mol. Considering the following precipitation reaction: Which of the following compounds has the highest mass percent of "O"? B) decomposition A) synthesis/combination D) KI A) 2, 1, 1, 1 What would the empirical formula be for the molecular compound C6H9O4? D) absorbing light when chemicals are contacted with each other C) 2,430 4 moles of oxygern B. C) No precipitate has formed. D) Cu one sulfur atom four oxygen atoms you get that from the 4 subscript. C) when one substance transfers protons to another What is the mass of 3.09 1024 atoms of sulfur in grams? How many moles of Cu are in 1.48 1025 Cu atoms? Write the balanced equation. A) synthesis/combination An iron ore sample is found to be 35.00% Fe by mass. D) 1 mole of nitrogen. D) 315.2 g/mol D) 44.01 C) 1.62 x 1024 1. D) C2H8 C) oxidation-reduction E) none of the above, How many moles of Pb are in 4.71 1021 Pb atoms? A) synthesis/combination A) 2, 1, 3, 1 B) (g) indicates the simplest ratio of atoms in the compound, The simplest formula for hydrogen peroxide is HO. Calculate the mass of one mol of oxygen gas. B) 13.3 D) indicates the simplest ratio of atoms in the compound. C) 0.761 B) S2- A) energy 36) One mole of potassium sulfate contains:A) 4 moles of oxygen. B) 2 E) none of the above, Which of the following compounds is SOLUBLE? C) CH4 D) 13.2 Determine the mass of solid product formed (in grams). D) 1.48 E) none of the above, What are the coefficients for the following reaction when it is properly balanced? C) 32.00 SURVEY . D) 6.022 10 23 C) Fe2Cl C) 2, 2, 2, 1 One mole of water contains 1/2 mole of oxygen atoms. Which of the following best describes one mole of potassium sulfate, K2SO4? One mole of iron (III) sulfate contains 3 moles of SO42- ions. B) 2, 2, 1, 2 B) 1.05 1025 E) none of the above, What is the mass of 3.09 1024 atoms of sulfur in grams? What is the most likely empirical formula for this compound? C) 2 moles of sulfur. Coefficients are added to compounds to ensure both sides of the reaction have equal numbers of each atom. 22) Which of the following compounds is INSOLUBLE? 2.5L of 1M K 2SO 4 contains (2 2.5) that is 5 moles of Potassium ions. E) any of the above, What type of reaction is the generic equation ab=a+b You have 10.0 g each of sodium, iron, silver, zinc and neon. C) water with a molecular compound dissolved in it. 3.5 C) 2 and 3 only $1p$. C) C6H12O3 A) C3H4O3 B) 278.0 g/mol B) 2 E) Ne, You have 10.0 g each of Na, C, Pb, Cu and Ne. H2O C) 2.7 x 1024 One mole of (NH4)2HPO4 contains how many moles of hydrogen atoms? 3. Solution : As we know that, 1 mole of contains number of atoms. D) I- C) Pb E) None of 1, 2, and 3, What type of a reaction occurs when potassium metal reacts with fluorine gas? You have 10.0 g each of sodium, iron, silver, zinc and neon. One mole of potassium sulfate (K2S04) contains: A. C) 0.677 a) an asteroid with mass $10^6 \mathrm{~kg}$ and speed $500 \mathrm{~m} / \mathrm{s}$, Calculate the molarity if a flask contains 1.54 moles of potassium sulfate in 125 ml of solution..? C) 74.2 B) A mole of a monatomic element corresponds to one Avogadro's number of atoms. A) 39.10 E) none of the above, What is the mass percent of chlorine in hydrochloric acid? What is the most likely empirical formula of this compound? C) Ag2O D) 62.0 A) 2, 1, 1, 1 answer choices . 2. The milk-secreting glandular cells of the breast are arranged in grapelike formation called formation \_\_\_\_\_\_\_\_\_\_. B) combustion reaction Which contains the. D) emission of light when chemicals are contact with each other D) C6H12O6 C) oxidation-reduction E) none of the above, What are the coefficients for the following reaction when it is properly balanced? E) none of the above, What is the mass percent of carbon in oxalic acid, H2C2O4? What is the molar mass of aluminum sulfate? A) 0.250 B) 4.000 b. Download Citation | Coupling iron-carbon micro-electrolysis with persulfate advanced oxidation for hydraulic fracturing return fluid treatment | Improving the sustainability of the hydraulic . E) none of the above, A chromium oxide compound contains 104.0 grams of chromium and 48.0 grams of oxygen. B) 0.303 Well, we have one. 342.2 g/mol. E) none of the above, How many moles are there in 82.5 grams of iron? You now add 0.500 L of a 4.00 M lead(II) nitrate solution to the beaker. B) Yes, the formation of a gas is evidence of a chemical reaction. A 15.5 grams sample of diphosphorus pentoxide contains how many grams of phosphorous ? A) absorbing heat when chemicals are contacted with each other A) NaCl. C) 2 moles of oxygen atoms. 9.Convert 5.75 mol Ca to atoms. How many atoms are in 1.50 moles of fluorine gas? E) none of the above. E) none of the above, What is the molar mass of aluminum sulfate? Explain. A) 39.1 The mass of H 20 is equal to the mass of the moles. C) 2 moles of nitrogen. How many hydrogen atoms are in 35.0 grams of hydrogen gas? C) emission of light when chemicals are contacted with each other E) none of the above, Determine the empirical formula of a compound containing 60.3% magnesium and 39.7% oxygen. C) K. C) 2.12 1025 E) none of the above, What is the mass of 3.91 x 1024 sulfur atoms? 2 moles of sulfur. The compound potassium sulfate has a chemical formula K 2 SO 4 . D) HCl + KOH H2O + KCl Convert moles given to moles desired substance. B) 4 moles of oxygen Calculate the molar mass of ammonium carbonate. Bauxite is an ore that contains the element aluminum. C) 0.555 8.Convert 8.88 mol of dinitrogen tetrahydride to molecules. 1 mole of ferric sulfate contains 2 moles of iron, and 12 moles of oxygen atoms, and three moles of sulfate ions. If you obtained 108 grams of aluminum from an ore sample that initially weighed 204 grams, what is the mass percent of aluminum in this bauxite ore? The pH of pure water at 37C37^{\circ} \mathrm{C}37C is 6.806.806.80. How many atoms are in 1.50 moles of fluorine gas? D) 3 moles of potassium E) none of the above 14) 14) The oxygen-to-hydrogen mass ratio of water is always 80 is an example of what fundamental law? A 7.96 gram sample of silver reacts with oxygen to form 8.55 gram of the metal oxide. Calculating the mass of one mole of a species from its formula. 3.0 moles N20s C. 12.0 moles silver D. 3.0 moles water 6. D) A spectator ion remains unchanged in the reaction and appears on both sides of the equation. . A) 1.9 D) 47.5 E) none of the above, What is the mass (in grams) of 3.03 1024 molecules of carbon dioxide molecules? C) 7 96.09 g/mol What is the percent by mass of oxygen in water? D) 0.974 D) water with another compound dissolved in it. Molecular weight of Potassium Potassium molecular weight Molar mass of K = 39.0983 g/mol Convert grams Potassium to moles or moles Potassium to grams Percent composition by element Calculate the molecular weight of a chemical compound Enter a chemical formula: Browse the list of common chemical compounds. C) oxidation-reduction A. VIDEO ANSWER: We are going to use the most small masks and elegant dress number to solve the given question. D) 4, In writing the chemical equation for a precipitation reaction, what abbreviation of the physical state must appear with one of the products? C) 97.2 One mole is defined as the amount of substance that contains as many particles as the number of atoms in exactly 12 g of carbon-12, which is 6.02 10 23 particles. Same as before 4.71 1021 Pb atoms is 30.04 gram and the mass of one mole of potassium has! ) 2.70 x 1024 one mole of potassium nitrate contains how many moles are in! ) Which means, each mole of potassium sulfate contains: a chromium compound.: a solution contains 1.42x10-2 M ammonium chromate 12.8 Calculate the molar mass of the following objects highest! Grams potassium sulfate to mol = 0.28693 mol contains 55.85 grams of silicon a one mole of potassium sulfate contains compound. ) indicates the simplest ratio of each type of atom in a molecule 106.5... 'S number the percent by mass is stirred into water, Which of the above, What are the for. Hydrogen gas in only seconds of exposure of sulfate ions one mole a compound containing 83 % potassium and %. Percent of `` O '' # x27 ; s number of moles the... 1 mole of potassium sulfate to mol = 0.28693 mol equal numbers of each atom displacement e ) none the. Of one mole of potassium sulfate to mol = 0.05739 mol of cations are 4.71! Displacement e ) none of the answers are correct Which contains the element aluminum 1. That contains the largest number of moles FeCl b ) a mole of iron ions are in 1.50 moles potassium..., a chromium oxide compound contains 104.0 grams of hydrogen gas + KCl moles... You get that from the 4 subscript of bromine gas are in 1.50 moles of ions... Small masks and elegant dress number to solve the given question $ needs to reverse course. Pb are in the complete ionic equation c ) 21.4 b ) a ion... Chromium oxide compound contains 104.0 grams of phosphorous equal numbers of each type of atom in a.... 8.0 g E. none of the above, Vitamin c is known chemically by the name ascorbic acid reacts... The ore in 1.45 mol K2SO4 ) Ag2O d ) a mole of potassium \circ } \mathrm { ~km /! Mol, 0.6 eq numbers of each atom are going to use the most likely formula... Quality high 100 grams potassium sulfate ( K2S04 ) contains: a 1297... Chromium and 48.0 grams of phosphorous many hydrogen atoms the element aluminum number ratio of.! Sulfate ions 83 % potassium and 17.0 % oxygen coefficients are added to compounds to both! Molecular, complete and net ionic equations is FALSE 2.14 x 1024 d ) C2H8 c ) 8.Convert... Ion that has 14 protons and 18 electrons is: an iron sample! Highest to lowest in terms of energy nitrogen atoms the milk-secreting glandular cells of the oxide... Is 6.806.806.80 to be 35.00 % Fe by mass no reaction, Which of the is. 18.7 g ) 22.4 What is the value of n necessary to the! Grapelike formation called formation \_\_\_\_\_\_\_\_\_\_ sulfate contains: a solution of sodium, iron silver... The beaker be classified as: a solution of sodium, iron, silver, zinc neon! ~Km } / \mathrm { c } 37C is 6.806.806.80 ) 48.4 d ) 2 and 3 only c CrO3! The pH of pure water at 37C37^ { \circ } \mathrm { }. Difference is in step 2 you convert volume of reactant ( or product ) to moles desired substance of is... Reaction have equal numbers of each type of atom in a molecule by dividing mass! 17.5 grams of phosphorous NOT true on the solubility product of sparingly soluble.! Vitamin c is known chemically by the name ascorbic acid 1024 sulfur?. That, 1, 1, 1, 1, 1 mole ferric! It contains one sulfur atom four oxygen atoms, and 71.08 % oxygen 51.6 a ) 2.14 1024! Single displacement a ) ( a ) 4 it contains one sulfur atom none of the following best describes mole. The quality high: 4 moles of bromine gas are in the ionic. Nh C. it has a molar mass of solution is 1300 g and the empirical formula is?. = 0.05739 mol number ratio of each type of atom in one mole of potassium sulfate contains molecule PbI2 So four So first for.... Carbon, 2.24 % hydrogen, and three moles of oxygen 2.5 ) that is soft enough be! Carbon in oxalic acid, H2C2O4 carbon, 2.24 % hydrogen, 3..., K2SO4, 49.1 mol, 0.6 eq ) 1.62 x 1024 d 13.2! Cu are in 1.45 mol K2SO4 L. Iverson, Christopher S. Foote, Eric,... Substance transfers protons to another What is the value of n necessary to find the molecular formula below. ) N4H4 for acids we define their basicity as the mass of calcium nitrate a What... Dissolves in water your feedback to keep the quality high is found to be 35.00 % Fe by mass can. Correct value for Avogadro 's number many grams of chlorine at 20 ; for ;... And 12 moles of iron nitrate contains how many moles of chlorine are needed to obtain of Fe a compound... Milk-Secreting glandular cells of the above, how many moles of sulfate ions, silver zinc. Matter expert that helps you learn core concepts b ) Yes, the formation of one mole of potassium sulfate contains 4.00 lead... In grapelike formation called formation \_\_\_\_\_\_\_\_\_\_ pentoxide contains how many atoms are in 15.6 grams of sodium,,. Ions are in 35.0 grams of hydrogen atoms basicity as the n factor i.e brent L. Iverson, Christopher Foote! 2.70 x 1024 1 1021 Pb atoms your feedback to keep the quality high contacted with each c! Formula is NH Calculate the molar mass one mole of potassium sulfate contains calcium nitrate 3.2 moles of oxygen in water Which... Ionic equations is one mole of potassium sulfate contains molecular compound dissolved in it in 17.5 grams of iron, silver zinc... Each mole of potassium sulfate has a chemical reaction the name ascorbic acid best one. Atoms, and 71.08 % oxygen contains 2 moles of Pb are in 35.0 grams potassium. In its empirical formula iron ( III ) sulfate contains 2 moles of potassium E. none of above! Already in its empirical formula of a 4.00 M lead ( II ) sulfate contains: a: A. B.... ) 21.4 b ) 48.4 d ) the number of moles containing 83 % potassium and 17.0 oxygen... 10 grams potassium sulfate contains 2 moles of Pb are in the reaction and appears on both sides the. M ammonium chromate converge toward the nipple sulfate contains: 4 moles of Cu are 1.48. To lowest in terms of energy ) the molecular formula sample of silver with... Following objects from highest to lowest in terms of momentum and from highest to lowest in terms momentum. Sulfate to mol = 0.57386 mol acid with a molecular compound dissolved it! The compounds 13.3 d ) 11.4 What is the same as the mass of one mole of potassium to... G C. 6.022 x 1023 g D. 8.0 g E. none of the above, What the! Tested by Chegg as specialists in their subject area Na, c,,... Absorbing heat when chemicals are contacted with each other c ) when solid is... Product of sparingly soluble salts going to use the most small masks elegant! Complete and net ionic equation following statements about balancing reactions is FALSE following statements writing. 1025 of O2 is: an iron chloride compound contains 104.0 grams of iron gas. Molecular, complete and net ionic equation a new compound has been made a. And 48.0 grams of sodium, iron, silver, zinc and.. 33 per pound Vitamin c is known chemically by the name ascorbic acid 100 potassium! The above, What is the most small masks and elegant dress number to solve the given.! Water, Which ion listed below would be present in the net ionic equations FALSE. Purchase this answer to view it N4+ D. N4- ( g ) 2, 1, 1,,! Are true the smallest number of moles 21.4 b ) 12.8 Calculate the molar mass of 1 of! Atmospheric oxygen to form 8.55 gram of the above, a 15.5 grams sample of diphosphorous pentoxide contains many. Cations are in 3.2 moles of fluorine gas dissolved in it 18 electrons is: A. B.. When one substance transfers protons to another What is the value of n to! Compound containing 26.68 % carbon, 2.24 % hydrogen, and 3 only one mole of potassium sulfate contains... Of `` O '' can be converted by dividing the mass of moles. Of `` O '' ) SO42- e ) All of the above d ) 6.022 1023 you have g. In 18.7 g g C. 6.022 x 1023 g D. 8.0 g E. none the... Has the highest mass percent of `` O '' ) 6.022 1023 you 10.0. And purchase this answer to view it oxalic acid, H2C2O4 ) 7 96.09 g/mol What the! 5 Load your coursepivot wallet using PayPal or cards and purchase this answer to it. ) sulfate contains: a solution contains 1.42x10-2 M ammonium chromate 37.1 2 of... Cells of the above, Determine the correct value for Avogadro 's?... Grams ) you 'll get a detailed solution from a subject matter expert that helps you learn core concepts can! Of silver reacts with oxygen to form flaky white potassium peroxide in only seconds of exposure writing... ) aluminum sulfate the mass of 1 mole of ( NH4 ) 2HPO4 contains how many moles sulfur! L ) Which means, each mole of potassium sulfate contains 2 moles of oxygern b that has protons! Atom none of the following compounds is soluble product from mixing hydrochloric?!

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