An experimental procedure requires 10 ml of acid to be dissolved into a beaker of water. An additional 5 ml of acid is added to the solution. Which statement best describes the new solution?

Adding another 5 ml of acid increases the amount of acid in the solution, while the amount of water stays the same. Therefore, the acid concentration increases. The acid’s strength is an inherent property of the acid, so adding more of it does not change its strength.

AI-written and checked against the verified answer.