You are a scientist working on increasing the efficiency of appliances to waste less electricity. You are running experiments measuring the input, output, and waste energy from 3 light bulbs. Given the data below, determine which model has the lowest percentage of energy lost as waste. Lightbulb 1: 200 joules in, 50 joules wasted, 150 joules out Lightbulb 2: 100 joules in, 30 joules wasted, 70 joules out Lightbulb 3: 150 joules in, 100 joules wasted, 50 joules out

Calculate the ratio of h+ ions to oh– ions at a ph = 7. find the concentration of h+ ions to oh– ions listed in table b of your student guide. then divide the h+ concentration by the oh– concentration. record this calculated ratio in table a of your student guide. compare your approximated and calculated ratios of h+ ions to oh– ions at a ph = 7. are they the same? why or why not? record your comparison in table a. what is the concentration of h+ ions at a ph = 7? mol/l what is the concentration of oh– ions at a ph = 7? mol/l what is the ratio of h+ ions to oh– ions at a ph = 7? : 1