Question

The molar mass of cadnium chloride is 183 g. If 300 mL of a solution contains 18.3 g CdCl2, the molarity of the solution is:

A. 0.2 M
B. 0.040 M
C. 0.10 M
D. 0.033 M
E. None of these

Answer 1

E. (None of these).

It is 0.333 M.

Step-by-step explanation:

A molar solution would contain 183 g in 1 liter.

By proportion, this solution contains 18.3 * 1000/300

= 61 g per liter.

So it is 61 / 183 = 0.333 M.