moles A 22.5 gram sample of ammonium carbonate contains of ammonium ions. Select one: a. 0.288 b. 0.468 O c. 2.14 O d. 3.47 O e. 0.234

Q: Determine the percent ammonia, NH3, in Co(NH3)6Cl3, to four significant figures.

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Q: 21. What is the molar mass of baking soda (NaHCO3)? a. 84.0 g b. 52.0 g c. 201.2 g d. 45.5 g a O b C…

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Q: How many moles of HCI are in a sample of HCI with a mass of 3.00g? 3.46 0.0823 0.0621 0.0549

A: Moles=GMMM Here, GM is given mass MM is molar mass Given mass is 3g  Molar mass is 36.5 Use this…

Q: How many moles of mercury are present in 102 g of mercury(1) oxide? a. 2.44 moles O b. 4.89 101…

A: 417.18 g of mercury oxide = 1 mole   1 g of mercury oxide= 1/417.18 1 g of mercury oxide= 1/417.18…

Q: 15. Acetone, formula C.H.O. is an organic compound found in some solvents, and is also produced by…

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Q: 10 How many moles are in 536 g of Ca(OH)2? A) 4.69 moles. B1 7.23 moles C) 74.10 moles DI 14.11…

A: Given compound is calcium hydroxide.The given mass of calcium hydroxide is 536 g.Standard…

Q: 20. Determine the molar mass of NH3 and H2O. Then determine the number of moles of H2O in 6.01grams.…

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Q: 20.  The number of moles in 112 g of acetylsalicylic acid (aspirin) C9H8O4 is    A. 1.61   B.…

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Q: 18 22. How many H₂O molecules are contained in a glass that holds 250. g of H₂ g/mole?

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Q: How many moles are in 114.58 grams of Ba (SO4) A. 0.72 moles Ba (SO4) B. 18,290.4 moles Ba (SO4)…

A: Number of moles of substance =(mass given)/(molar mass) ----(1) Given data:  Mass of BaSO4…

Q: Citric acid, C HO,, is found in many fruits How many H atoms are contained in 0.1g of citric acid…

A: Given data contains, Mass of citric acid is 0.1 g. Molar mass of citric acid is 192.124 g/mol. The…

Q: Question 4 A solution is made by dissolving 60.0 g of AlCl3 in enough water to make 250.0 mL of…

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Q: Citric acid, C,H,0,, is found in many fruits How many O atoms are contained in 100. mg of the acid?…

A: According to avagadro's law1 mole of any molecule contains 6.023×1023 moleculesBy using this law we…

Q: Ethanol has a molecular formula of CH3CH2OH. a.    What is the molar mass of ethanol? b.    What is…

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Q: Calculate the number of moles of chlorine in 5.25 g of MgCl2? O 0.0879 mole chlorine O 0.0110 mole…

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Q: How many moles of sulfate ions (SO,2) are present in 0.30 mol of aluminum sulfate? A. 0.10 mol B.…

A: Al2(SO4)3 is a salt and readily dissociates in water forming following ions as shown below in the…

Q: Calculate the percent composition of H in NH4NO3, a compound used as a fertilizer. A. 27.8 B. 8.07…

A: Recall, Compound= NH4NO3 %H = ?

Q: How many moles are in 20.0 grams of F2?760. 760. moles 1.05 moles 0.526 moles 19.0 moles 38.0 moles

A: Given data contains, Grams of F2 is 20.0 grams. Molar mass of F2 is 37.99 g/mol.

Q: How much zinc oxide powder should you add to 2 oz (AV) of 5% zinc oxide (Zno) ointment to make a 10%…

A: We will calculate amount of ZnO in 5% ointment , then calculate amount of ZnO added to it to make it…

Q: In a beaker containing 20.0 g AgCl, 30.0 of NaCl, and 50.0 g of KCl. How much chlorine (in grams) is…

A: Given: Mass of AgCl is 20.0 g Mass of NaCl is 40.0 g Mass of KCl is 50.0 g To find: Mass of Cl in…

Q: How many moles of Na are needed to produce 100 g of Al? 6 Na() + Al2O3(s) → 2 Al(/) + 3 Na2O(s) O A.…

A: Number of moles is calculated by dividing the given mass the molecular mass. In the given question,…

Q: How many moles of sulfate ions are contained in 0.420 moles of aluminum sulfate?   A. 0.140 moles…

A: Only 1st question is answered according to the policy

Q: What is the percent of carbon in the pesticide DDT (C14H9Cl5) ? The molar mass of C14H9Cl5 is 354.5…

A: The given data: The chemical formula for DDT = C14H9Cl5 The molar mass of DDT = 354.5 g/mol To…

Q: Obtain the moles

A: Number of moles = mass/molar mass        Since you have posted a  question with sub-parts , we are…

Q: Convert 7.63g of NH3 to moles.  Group of answer choices 0.448 moles 0.178 moles 1.56 moles 2.50…

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Q: The density of liquid benzene, CH, is 0.879 g/cm at 15 °C. How many moles are there in 36.5 mL of…

A: Given  Density of benzene is 0.879 g/cm3 Volume of benzene is 36.5 mL moles of benzene will be

Q: How many moles of zinc ( Zn ) are there in 45.6 grams of zinc? A. 0.697 moles B. 1.39 moles C. 0.349…

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Q: 0. How many moles are present in 450 grams of sodium phosphide, Na3P? O 44, 995 moles 450 moles O…

A: Given in the question = Compound = Na3P Given mass of compound = 450 gms Molar mass of compound =…

Q: How many oxygen atoms are present in 2.1g of Al203? Molecular weight of Al203= 102 g/mol Avogadrow…

A: The number of atoms in oxygen molecule has to be given, Given, Mass=2.1 g. Molar mass=102 g/mol.…

Q: Which one of the following samples contains the largest number of molecules? a. 3 moles of H2O b.…

A: 1 mole = 6.022×1023 [Avogadro's number ] The mass of one mole of molecules of a substance is known…

Q: How many moles of hydrogen are present in 467 mg of oxalic acid? O a. 5.19 10-3 moles O b. 5.19…

A: Moles = Given mass/ Molar mass Molar mass  of oxalic acid = 90.3g/mol

Q: 6. How many moles of chloride atoms are present in a 66.7 gram sample of AtCl3? 1.5 moles 2.0 moles…

A: Mass of AlCl3 = 66.7 g