What is the pH of a solution that has a hydronium ion concentration of 1.00*10^-101.001010 M?

1 Answer
Nov 5, 2015

Take the negative log of your H_3O^+H3O+ molarity.

Explanation:

The pH of an aqueous solution can be found simply by taking the negative logarithm of your hydronium ion concentration, or stated mathematically,

pH = -log[H_3O^+]log[H3O+]

So, if we plug in your numbers we'll get:

pH = -log[1.00*10^-10]log[1.001010]

Throw that bad boy in your calculator and you'll find your pH. Or I can just tell you. (It's 10.)