0.450 moles of K2SO4 are dissolved in 195.0 mL of water. Calculate the molarity of the solution.

2.31M

Explanation:

The following data were obtained from the question:

Mole of K2SO4 = 0.450 mole

Volume of water = 195.0 mL = 195/1000 = 0.195L

Molarity = ... ?

Molarity is defined as the mole of solute per unit litre of the solution. This can be expressed as:

Molarity = mole / Volume

With the above formula we can calculate the molarity of the K2SO4 solution as follow:

Molarity = mole / Volume

Molarity = 0.450/0.195

Molarity = 2.31M