Question

What is the molarity of solution containing 6.3gm HNO3 in 200ml solution?​

Answer 1

Answer:

The molarity of the given solution is 0.5M.

Explanation:

Given that,

The mass of Nitric acid$(HNO_{3})$ is $m=6.3gm$ and

The volume of the solution is $V=200ml=0.2L$

The molar mass of nitric acid is $M=63g/mol$

Therefore,

The number of moles of nitric acid are

$n=\frac{m}{M}=\frac{6.3}{63}=0.1mole$

Now molarity of the solution is given by the relation

$M=\frac{n}{V(in\:L)}$

Substituting the known values in the above relation we get

$M=\frac{0.1}{0.2}=0.5M$

Therefore,

The molarity of the given solution is 0.5M.

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