I did an experiment on the effect of substrate concentration on the rate of a catalase. I was given 6% substrate concentration of hydrogen peroxide. We had to do 3 trials with different concentrations of the hydrogen peroxide but we had to dilute the peroxide ourselves in the second trial I added 10 mL of water and in the third trial I added 20 mL of water. What I dont know is if I started with 6% and added 10 mL of water how did the adding of the water change the percent concentration of the peroxide? What is the concentration of the peroxide after 10 and 20 mL of water are added?