The goal for experiment 1: ideal gas law - finding percent h2o2 with yeast is to find the percentage of hydrogen peroxide in the solution. to determine percentage, you need to first determine how many moles of hydrogen peroxide are present. rearrange pv=nrt to solve for n, then plug in your known values for p, v, r, and t. show all your calculations from experiment 1 for converting your temperature (t) to kelvin.