5. What volume of acetic acid (CH3COOH), S.G. 1.05 and assay of 99.7 percent is
required to prepare 250 mL of a 0.500 mol/L acetic acid solution?
6. What is the mass of H2SO4 present in 150 mL of sulfuric acid solution with a
specific gravity of 1.86 and a purity of 93.0 percent.
7. What is the mol/L concentration of the sulfuric acid solution in exercise 6?
8. How much of the sulfuric acid solution in exercise 6 would be required to prepare
1000 mL of a 2.50 mol/L sulfuric acid solution?
9. A HCl solution of 500 mL was prepared by using 25.0 mL of commercial reagent,
S.G. 1.20 and assay of 34.0 percent. What is the mol/L concentration of the
solution that was prepared?
10. A H3PO4 solution was prepared by adding 12.5 mL of concentrated acid, S.G.
1.70 and 87.0 percent purity, to a one liter flask and Q.S. to the mark. Assuming
that the acid ionizes completely, what is the normal concentration of the
phosphoric acid that was prepared?
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MD0837
8-11
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