# What is the pH and pOH of 6.5 g of sodium hydroxide in 650 mL of water?

##### 1 Answer

Feb 11, 2017

#### Explanation:

And since,

So

And

Spare a thought for the students who did these calculations in the days before electronic calculators. Some 30-40 years ago, students of mathematics, and physics, and chemistry, would routinely use logarithmic tables for these calculations.