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Salts and Their Reactions

7. When 1.00 grams of chromium metal is heated in excess iodine, 8.301 rams of chromium iodide salt is formed. Calculate the empirical formula of this salt.

8. When a calcium carbonate tablet is ingested, it dissolves by the reaction of stomach acid, which contains hydrochloric acid. The unbalanced equation for this reaction is CaCO3(s) + HCl(aq) ---> CaCl2(aq) + H2O(l) + CO2(g). How many calcium carbonate tablets, each containing 500 mg of the active ingredients are required to react with 37.0 grams of stomach acid containing 49.5% HCl by mass?

9. The formula for thionyl chloride is SOCl2. This compound is a very powerful drying agent in the synthetic chemistry industry in that it reacts completely with water according to the following unbalanced equation: SOCl2(l) + H2O(l) ---> SO2(g) + HCl(g). How many grams of thionyl chloride remove 305.0 grams of water?

10. 637 atoms of a particular isotope weigh 2.2483 x 10^-19 grams. What is the atomic mass of the isotope?

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Solution Summary

This solution provides calculations for questions involving salts.