Question

If you have 1.29 moles of NaCl in 4 liters of solution, what is the molarity of the solution?

Answer 1

Answer:

0.32M

Explanation:

Given parameters:

Number of moles of NaCl  = 1.29moles

Volume of solution = 4liters  = 4dm³

Unknown:

Molarity of solution = ?

Solution:

Molarity is one the ways of expressing the concentration of a solute in a solution. It is given as;

         Molarity  = $\frac{number of moles }{volume}$

The unit is given as M which is mol/dm³

    Input the parameters and solve;

           Molarity  = $\frac{1.29}{4}$    = 0.32mol/dm³ or 0.32M