Base your answers to questions 1 through 3 on the information below and on your
knowledge of chemistry.
Given the unbalanced equation showing the reactants and product of a reaction
occurring at 298 K and 100. kPa:
P4(s) + Cl2(g) → PC13(C) + energy
1. a. Show a numerical setup for calculating the percent composition by mass of chlorine in
PCl3(l) (gram-formula mass = 137 g/mol).