Question

define molarity .Calculate the molarity of a solution containing 10.6 gm Na2co3 in 500ml solution
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Answer 1

$\huge\underline\mathcal\pink{Answer}$

Molarity : It is defined as the number of moles of solute in one litre of the solution.

[Note = 500ml = 0.5 l]

We know, Molarity

$= \frac{No. \: of \: moles \: of \: solute}{Volume \: of \: solutiom \: in \: litres}$

$= \frac{10.6}{0.5}$

$= 21.1 M$