Enter your answer in the provided box. When potassium cyanide (KCN) reacts with acids, a deadly poisonous gas, hydrogen cyanide (HCN), is given off: KCN(aq) + HCI(aq) → HCN(g) + KCl(aq) If a sample of 0.230 g of KCN is treated with an excess of HCl, calculate the amount of HCN formed in grams.

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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".