An insecticide is known to contain C, H and Cl. Reactions were carried out on a 1.000 gram sample of the compound that converted all of its chlorine (Cl) to chloride ion dissolved in water. The aqueous solution was subsequently treated with an excess of AgNO3 solution and the AgCl precipitated was collected and had a mass of 2.022 grams of AgCl.   (a) How many moles of Cl (Cl-1) were in the AgCl sample? (b) How manygrams of Cl (Cl-1) were in the AgCl sample? (c) What is the percentage by mass of Cl in the original (1.000g) the insecticide sample?

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Q: Question in image

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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".