4. Consider the following redox equation (balanced) 32 H+ + 4 a. b. 4 Cr20² +3 S2-8 Cr³+ + 3 so + 16 H₂O Calculate the Molarity of a solution prepared by dissolving 0.624 g of Na2S in enough water to give 250 mL of solution. How many mL of this solution will be required to react with 0.512 g of Al2(Cr2O7)3? Suppose that 24.86 mL of this Na2S solution was required to react with 0.377 g of a dichromate salt. Which one of the following could be this salt? BaCr2O7 Fe2(Cr2O7)3 CaCr2O7 PbCr2O7 C. Bi2(Cr2O7)3. d. How many mL of the Na2S solution would be required to react with 50.00 mL of 0.300 M K2Cr207 solution?

4. Consider the following redox equation (balanced) 32 H+ + 4 a. b. 4 Cr20² +3 S2-8 Cr³+ + 3 so + 16 H₂O Calculate the Molarity of a solution prepared by dissolving 0.624 g of Na2S in enough water to give 250 mL of solution. How many mL of this solution will be required to react with 0.512 g of Al2(Cr2O7)3? Suppose that 24.86 mL of this Na2S solution was required to react with 0.377 g of a dichromate salt. Which one of the following could be this salt? BaCr2O7 Fe2(Cr2O7)3 CaCr2O7 PbCr2O7 C. Bi2(Cr2O7)3. d. How many mL of the Na2S solution would be required to react with 50.00 mL of 0.300 M K2Cr207 solution?

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter3: Chemical Reactions

Section: Chapter Questions

Problem 57QRT

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