Question

Calculate the molarity of a solution that contains 0.175 mol of zncl2 n exactly 150 ml of solution.

Answer 1

Explanation:

Molarity is the number of moles present in liter of a solution.

Mathematically,    Molarity = $\frac{\text{no. of moles}}{\text{volume in liter}}$

It is given that no. of moles present into the solution are 0.175 mol and volume is 150 ml.

As 1 ml = 0.001 L. So, 150 ml will be equal to 0.15 L.

Hence, calculate the molarity as follows.

    Molarity = $\frac{\text{no. of moles}}{\text{volume in liter}}$

                  = $\frac{0.175 mol}{0.15 L}$                

                  = 1.16 M

Thus, we can conclude that molarity of the given solution is 1.16 M.

Answer 2

Molarity = mol/L

0.175 mol
0.15 L (1000 mL = 1 L)

Molarity = 0.175 mol/0.15 L = 1.1666667 M