A chemist prepares an aqueous solution of sodium hydroxide.The solution contains 120.0 g of NaOH and has a volume of 600 mL.What is the molarity of this solution?

Question

Quizplus · Accepted Answer

Molarity = moles of solute / volume of solution in liters

First, we need to convert the volume of the solution to liters:

600 mL * (1 L/1000 mL) = 0.6 L

Next, we need to calculate the number of moles of NaOH present in the solution:

moles = mass / molar mass

The molar mass of NaOH is 23 + 16 + 1 = 40 g/mol

moles = 120.0 g / 40 g/mol = 3.00 mol

Now we can calculate the molarity:

molarity = 3.00 mol / 0.6 L = 5.00 M

Therefore, the answer is C, 5.00 M.

A Chemist Prepares an Aqueous Solution of Sodium Hydroxide