Question

A solution of acid was found to have a pH of 1.50. What is the hydrogen ion concentration of the solution? (Give your answer in scientific notation to 3 significant figures.)

Answer 1

1.5 = - log H+
10^1.5 = 1/H+
H+ = 1/ 10^1.5 = .0316

Answer 2

or 10^-1.5 = .0316
or antilog (-1.5) = .0316

lots of ways to do it, all really the same