The molarity of a 1250-mL solution having 7.75 moles NaCl is 9.4 M. The formula mass for NaCl is 58.44 u.

Question

Quizplus · Accepted Answer

The molarity of a solution is calculated by dividing the number of moles of solute by the volume of the solution in liters. In this case, the number of moles of NaCl is 7.75 moles and the volume of the solution is 1250 mL, which is equal to 1.25 L. Therefore, the molarity of the solution is 7.75 moles / 1.25 L = 6.2 M, not 9.4 M.

The Molarity of a 1250-ML Solution Having 7