Question

A 1.0 M solution of hydrochloric acid is mixed with an equal volume of sodium hydroxide solution. The resulting solution turns pH paper blue, meaning the solution is basic. Which of the following concentrations would be consistent with the experimental results for sodium hydroxide?

A. 1.0 M
B. 2.0 M
C. 0.5 M
D. 0.25 M

Answer 1

Answer:B since it have to be in excess inorder to result into basic salt result to blue colour