Question

Calculate the molarity of the solution to 3 digits.

Answer 1

The correct answer would be 0.254.

Answer 2

Answer: The molarity of the solution is 0.254 mol/L

Explanation:

Molarity is defined as the number of moles of solute present per Liter of solution. It is a unit of concentration. The units used to express molarity is mol/L.

Mathematically,

$\text{Molarity}=\frac{\text{Moles of solute}}{\text{Volume of solution (in L)}}=\frac{\text{Given mass of solute}}{\text{Molar mass of solute}\times\text{Volume of solution (in L)}}$

We are given:

Given mass of solute = 100 g

Molar mass of solute = 342.28 g/mol

Volume of solution = 1.15 L

Putting values in above equation, we get:

$\text{Molarity of solution}=\frac{100}{342.28\times 1.15}=0.254mol/L$

Hence, the molarity of the solution is 0.254 mol/L