5. Hydrogen sulfide can be used in aqueous solutions to separate out metal ions. On the other hand, hydrogen sulfide in the air causes considerable damage to silver objects. When a silver goblet tarnished in the presence of hydrogen sulfide (and oxygen), 1.20 mol of silver sulfide formed. What amount of silver was consumed? A. 4.80 mol B. 2.40 mol C. 1.20 mol D. 0.600 mol

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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".