Question

Calculate the molarity of a solution that contains 0.250 moles of kf in 0.500 l of water

Answer 1

Molarity can be defined as the number of moles of solute in 1 L of solution.

M = n/V

Where M is the molarity of the solution (M or mol/L), n is the moles of the solute (mol) and V is the volume of the solution (L).

Here, solute is KF.

n = 0.250 mol
V = 0.500 L
M = ?

By applying the formula,
   M = 0.250 mol / 0.500 L
   M = 0.500 mol/L

Hence, the molarity of KF solution is 0.500 mol/L.