Getting 70% Isopropyl Alcohol down to exactly 50% based on a 32oz bottle
February 6, 2013 8:10 AM Subscribe
For one of the steps to a science project, I need to take a 32oz bottle of drugstore 70% isopropyl alcohol and reduces down to 50% by adding distilled water. Can anyone tell me how many ounces of water I would need to add to the 32oz bottle of isopropyl to make it 50% alcohol? The mathematical formula would be helpful if it's easy enough to calculate in the future. Thank you.