The oxidation of phosphine (PH3) to phosphorus pentoxide (P2O5) is given by the chemical reaction. __PH3 +__O2 ---> __P2O5 + __H2O b. How many grams of O2 will react completely with 35.0 grams of PH3?  c. How many grams of P2O5 and H2O will be produced in the reaction?  d. If the reaction give 64% yield. How many grams of PH3 should be used to give an actual yield of 250 grams of P2O5?

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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".