NaNO2 (aq) + HSO3NH2 (aq) ----> NaHSO4(aq) +N2(g) + H2O (l) Consider that you used a 25mL aliquot of each pre-made solution for each individual run. How many moles of limiting reagent were used in each run , sulfamic acid is the limiting reagent. Given : mass of sulfamic acid= 0.629g and  sodium nitrite= 0.888g  Volume of sulfamic acid in run 1,2,3 = 25.5mL , 25.3mL, 25.6mL

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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".