Question

What is the molarity of 0.2N Na2co3 solution

Answer 1

Answer : 0.1M

Explanation: Molarity is defined as the number of moles dissolved per liter of the solution.

Normality is defined as the number of gram equivalents dissolved per liter of the solution.

$Normality=Molarity\times n$

n= valency factor

$Na_2CO_3$ is a salt so n depends on the charge of cation or anion Thus n=2.

Given: Normality = 0.2N

$Molarity=\frac{Normality}{n}$

$Molarity=\frac{0.2}{2}=0.1M$

Answer 2

Answer:0.1

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