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11. Potassium iodide is used as a dietary supplement to prevent goiter, an iodine deficiency disease. It is prepared by the reaction of hydrogen iodide

11. Potassium iodide is used as a dietary supplement to prevent goiter, an iodine deficiency disease. It is prepared by the reaction of hydrogen iodide and potassium hydrogen carbonate. HI + KHCO3  KI + H2O + CO2

(a) How many grams of KI is produced by mixing 481g HI with 318g KHCO3.

(b) Which reagent is in excess and what mass is left over?

(c) If the actual yield is 490g KI, what is the percentage yield?

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