A soluble Iodide was dissolved in water. Then an excess of silver nitrate, AgNO3, was added to completely precipitate out all of the iodine ion as silver iodide, AgI. If 1.545 grams of soluble iodide gave 2.185 of silver iodide, then (a) How many moles of Iodine are in the original soluble iodide sample? (b) How many grams of Iodine are in the original soluble sample? (c) What is the percentage mass of Iodine in the original soluble iodide sample?

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Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".