One of the commercial uses of sulfuric acid is the production of calcium sulfate and phosphoric acid. If 29.8 g of Ca₃(PO₄)₂ reacts with 54.3 g of H₂SO₄, what is the percent yield if 10.9 g of H₃PO₄ is formed via the UNBALANCED equation below? Ca₃(PO₄)₂ (s) + H₂SO₄ (aq) → H₃PO₄ (aq) + CaSO₄ (aq) How many moles of H₂O can be formed from 1.27 × 10²³ molecules of NH₃ from the following equation? 4 NH₃(g) + 5 O₂(g) → 4 NO(g) + 6 H₂O(g) When copper is heated with an excess of sulfur, copper(I) sulfide is formed. In a given experiment, 1.50 g of copper was heated with excess sulfur to yield 1.78 g copper(I) sulfide. What is the percent yield?

Q: KOH (aq)    +    H3PO4 (aq)      →    K3PO4 (aq)   +   3 H2O (l) In this reaction, 25.800 g of KOH…

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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".