Question

A solution is prepared by dissolving 4.40 g of KSCN in enough water to make 250 mL of solution. What is the concentration of the solution?

Question 11 options:

Answer 1

Molarity is one way of expressing concentration and has units of moles of solute per liter of solution. First, we need to convert the mass from grams to moles by the molar mass. Then, divide the moles with the volume of the solution.

Molarity = 4.40 g / 97.18 g/mol / .250 L
Molarity = 0.18 M