A student started with 1.525 grams of copper (II) oxide and produced 3.500 g of copper (II) sulfate.  What is the percent yield?  The product is a hydrate.  Use appropriate significant figures.  Do not put a percent sign in the answer box. Please ignore extra zeros that will be automatically added to your answer by the system. Useful information: chemical equation: CuO(s) + H2SO4 (aq) ---> CuSO4 (aq) +H2O(l) Formula weight of hydrated copper (II) sulfate = 249.677 g/mol Formula weight of copper (II) oxide = 79.545 g/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".