1. In an experiment, 3.25 g of NH3 are allowed to react with 3.50g of O2 in the following reaction:NH3 + 02 > NO + H20 a. Which reactant is

the limiting reagent? b. How many grams of NO are formed? (what is the theoretical yield?) c. How much of the excess reactant remains after the reaction? 2. If 4.95 g of ethylene (C2H2) are combusted with 3.25 g of oxygen gas, a. What is the limiting reagent? b. How many grams of CO2 are formed? 3. For the reaction: C6H6 + Br2 → C6H5Br + HBr a. What is the theoretical yield of C6H5B if 42.1 g of C6H6 react with 73.0 g of Br2? b. If the actual yield of C6H5B is 63.6 g, what is the percent yield? . For the reaction: HCl(aq) + NaOH(aq) > H2O1) + NaCl(aq)solution of HCl is 5.00 ml of the HCl solution is titrated with 26.8 mL of a 0.145 M NaOH What is the molarity of a solution? A solution of 0.312 M KOH is used to titrate 15.0 ml of a 0.186 M H3PO4 solution. What volume, in millilitres, of the KOH solution is required? 5. Silicon nitride (Si3N4) is made by combining Si and nitrogen gas at a high temperature.How much (in grams) of Si is needed to react with an excess of nitrogen gas to prepare125 g of silicon nitride if the percent yield of the reaction is 95.0%?