A beaker contains 38.0 mL of 0.600 M NaOH solution. A few drops of litmus is added to the solution. What is the color of the solution?

1 Answer
May 14, 2017

It turns blue

Explanation:

The concentration of OH ions in the solution is 0.600M.
The pH can be calculated by taking the negative of the logarithm of 0.600 and subtracting the result from 14.00:

pH=14(log(0.600))=13.78

which indicates a strongly basic solution, and since litmus turns blue in the presence of a basic solution, the solution will turn blue when the litmus is added.