2. Calculate the molar mass of barium sulfite. 217g/mol 3. In the balanced equation for the reaction: XP406(s) + yH₂O(1)→ ZH3PO3(aq) equals 2, the coefficient z equals: 4. Consider the following reaction: CH₂(g) +4Cl₂(g) →ca, (g) + 4HCl(g) What mass of CC14 is formed by the reaction of 40g of methane with an excess of chlorine? 384.5 5. Suppose the reaction Ca3(PO4)2 + 3H₂SO4 → 3CaSO4 + 2H³PO4 is carried out starting with 153g of Ca3(PO4)2 and 77 g of H₂SO4. a. Identify the limiting and excess reactants. b. How much excess reactant is left over? 71.69 g c. How much phosphoric acid will be produced? 51.2 g 6. How many moles of Li³N can be formed from 6 Li(s) + N₂(g) → 2 Li³N(s) 80 moles of Li? Assume an excess of nitrogen. 26.7 moles