Question

Calculate the normality of 0.321 g sodium carbonate when it is mixed in a 250 mL solution

Answer 1

Answer

First, you have to know or write down the formula for sodium carbonate. Once you do this you can identify that there are two sodium ions for each carbonate ion. Now solving the problem will be easy.

N of 0.321 g sodium carbonate

N = Na2CO3 × (1 mol/105.99 g) × (2 eq/1 mol)

N = 0.1886 eq/0.2500 L

N = 0.0755 N