Question

Carlo has 200 ml of a 35% alcohol hand sanitizer. Rita has 150 ml of an 85% alcohol hand sanitizer. They mix the sanitizers together in an effort to achieve a 60% concentration of alcohol. What is the concentration of alcohol in the new mixture? (Round your answer to one decimal place.)

Answer 1

Explanation:

CDC recommends washing hands with soap and water whenever possible because handwashing reduces the amounts of all types of germs and chemicals on hands. But if soap and water are not available, using a hand sanitizer with at least 60% alcohol can help you avoid getting sick and spreading germs to others. The guidance for effective handwashing and use of hand sanitizer in community settings was developed based on data from a number of studies.