Question

a chemist mixes 15 milliliters of a solution that is 75% acid with 110 milliliters of pure acid. what percentage of the resulting mixture is acid? how many milliliters of acid are in the resulting mix?

Answer 1

15 milliliters of a solution that is 75% acid. So, 75% of 15 = 0.75 × 15 = 11.25 ml of acid. Also, we have 110 milliliters of a solution pure acid. Thus, millilitres of acid in the resulting mixture = 110 + 11.25 = 121.25 ml . Now, total volume of the mixture solution = 15 + 110 = 125 ml. So, 121.25 ml of the 125 ml solution is acid

Explanation:

Answer 2

97% acid

121.25 milliliters

Explanation:

The amount of acid in the 15 milliliters of 75% acid solution is:

0.75 x 15 = 11.25 milliliters

The amount of acid in the 110 milliliters of pure acid is:

110 milliliters

The total amount of acid in the resulting mixture is:

11.25 + 110 = 121.25 milliliters

The total volume of the resulting mixture is:

15 + 110 = 125 milliliters

So, the percentage of the resulting mixture that is acid is:

(121.25 / 125) x 100 = 97%

Therefore, the resulting mixture is 97% acid, and the total amount of acid in the resulting mixture is 121.25 milliliters.

Hope this helps!