# What is the molal concentration of 0.1 mol/L #"HCN"#?

##### 1 Answer

The molality of 0.1 mol/L

#### Explanation:

We have to convert moles of

A concentration of 0.1 mol/L is quite dilute, so I will take the density of the solution as that of water (1 g/mL).

Assume that we have 1 L of 0.1 mol/L

Then,

Now, we are ready to calculate the molality of the solution.

Thus, a 0.1000 mol/L solution of HCN has a molality of 0.1003 mol/kg .

**Conclusion:** If the solution is sufficiently dilute, the molality is almost the same as the molarity.