What is the molarity of a solution in which 55.49 g of calcium chloride is dissolved in enough water to make 500.mL of solution?
A)0.500 M
B)1.00 M
C)2.00 M
D)4.00 M

Question

Quizplus · Accepted Answer

To find the molarity, first calculate the moles of calcium chloride (CaCl2). The molar mass of CaCl2 is approximately 110.98 g/mol. Thus, 55.49 g of CaCl2 is 55.49 g / 110.98 g/mol = 0.500 moles. Since the solution volume is 500 mL or 0.500 L, the molarity is 0.500 moles / 0.500 L = 1.00 M.

What Is the Molarity of a Solution in Which 55