Question

A chemist has 100ml of a solution that is 9% acetic acid. If the chemist adds 50ml of pure water to this solution, what is the percent concentration of the resulting mixture?

Answer 1

If your 100ml solution is 9% acid, that means that it's made of 9ml of acid and 91ml of water. So, if you add 50ml of water, you'll have a total of 150ml. 9ml acid, 141ml water. So what percentage acid is it?

Answer 2

6%?

Answer 3

Yep :)

Answer 4

So 6% is the answer?

Answer 5

Yes.

Answer 6

Thanks a lot