1. The problem statement, all variables and given/known data We are given a reaction: H2O2 + 2I- + 2H+ → 2H2O + I2 and are asked to find the initial number of moles of each reactant. V=10mL and C=0.2 mol/L for potassium iodide in the solution. V=5mL and C=0.5 mol/L for sulfuric acid in the solution. V=5mL and C=0.02 mol/L for hydrogen peroxide in the solution. 2. Relevant equations n=CxV where n is the number of moles, C is the concentration, and V is the volume. 3. The attempt at a solution I know we need to use the equation stated above but should we multiply by the coefficient or not?