Question

What is the molarity of a solution prepared by dissolving 21.33 g of cadmium (II) bromide in 892.5 mL of water? Report your answer to THREE places past the decimal.

Answer 1

molarity cadmium (II) bromide = 0.088 M

Explanation

mass cadmium (II) bromide = 21.33 g

moles cadmium (II) bromide = (mass cadmium (II) bromide) / (molar mass cadmium (II) bromide)

moles cadmium (II) bromide = (21.33 g) / (272.22 g/mol)

moles cadmium (II) bromide = 0.0784 mol

molarity cadmium (II) bromide = (moles cadmium (II) bromide) / (volume of water in liters)

molarity cadmium (II) bromide = (0.0784 mol) / (0.8925 L)

molarity cadmium (II) bromide = 0.0878 M