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What will be the molarity of a solution,...

What will be the molarity of a solution, which contains 5.85g of `NaCl(s)` per 500mL?

A

4 mol `L^(-1)`

B

20 mol `L^(-1)`

C

0.2 mol `L^(-1)`

D

2 mol `L^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
C
Since, molarity (M) is calculated by following equation
Molarity ` = ("weight" xx 100)/("molecular weight" xx "volume(mL)")`
` = (5.85 xx 1000)/(58.5 xx 500) = 0.2 "mol" L^(-1)`
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