An aqueous solution of NaOH can dissolve an aluminum sheet in the reaction: 2Al + 2NaOH + 2H2O=2NaAlO2 + 3H2 If 126.4 g of NaOH is 97.7 g of Al are made to react, a. How many moles of NaAlO2 is produced if 126.4 g of NaOH reacts completly, b. How many grams of NaAlO2 is  using the same amount of NaOH? c. Which reactant is the limiting reagent? d. How many grams of the excess reagent is left?

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A: HE REACTION WILL BE AS FOLLOW: 4Al(s) + O2(g)----------->2Al2O(s)

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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".