Question
Given that the molar mass of NaCl is 58.44g//mol , what is the molarity of a solution that contains 87.75g of NaCl in 500.mL of solution? Use molarity =(" moles of solute ")/(" liters of solution ") . 0.333M 0.751M 1.50M 3.00M
Answer
4.1
(214 Votes)
Horatio
Expert · Tutor for 3 years
Answer
D.
Explanation
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 calculated by dividing the mass of NaCl (87.75 g) by its molar mass (58.44 g/mol). The volume of the solution is given as 500 mL, which is equivalent to 0.5 L. Therefore, the molarity of the solution is approximately 3.00 M.