What is typically the pH result when combining a strong acid and a strong base?

Disable ads (and more) with a membership for a one time $4.99 payment

Enhance your knowledge and skills for the UCF CHM2046 Chemistry Fundamentals II Test 3. Dive into multiple choice questions with explanations and get confident for success in your exam!

When a strong acid and a strong base are combined in equal concentrations, they react in a neutralization reaction, which typically results in the formation of water and a salt. The pH of the resulting solution is usually around 7, which is considered neutral on the pH scale. This outcome occurs because strong acids fully dissociate in water, providing a high concentration of hydronium ions (H₃O⁺), while strong bases fully dissociate to provide a high concentration of hydroxide ions (OH⁻). When they react, these ions effectively cancel each other out, leading to a neutral solution.

In practical applications, factors such as the concentration of the solutions and any excess acid or base can influence the final pH, but under ideal scenarios with equal stoichiometric amounts, the pH will approximate neutral, which is 7. This understanding is crucial in acid-base chemistry, particularly in titration processes where the endpoint is often determined to be a neutral pH.