Question

If 60g nacl is dissolved in 2000 ml of solution, then calculate the molarity of the solution

Answer 1

mass of solute =60 g

molar mass of NaCl=58.5g/mol

total moles=60/58.5

=1.025mol

volume =2000ml

=2L

molarity=no. of moles/vol of solution

=1.025/2

=0.5125 or. 0.5M

Answer 2

The molarity of NaCl solution is 0.513 M

Explanation:

To calculate the molarity of solution, we use teh equation:

$\text{Molarity of the solution}=\frac{\text{Mass of solute}\times 1000}{\text{Molar mass of solute}\times \text{Volume of solution (in mL)}}$

Given mass of NaCl = 60 g

Molar mass of NaCl = 58.5 g/mol

Volume of solution = 2000 mL

Putting values in above equation, we get:

$\text{Molarity of NaCl solution}=\frac{60\times 1000}{58.5\times 2000}\\\\\text{Molarity of NaCl solution}=0.513M$

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