Question

A solutionn is prepared by dissolving 116.9g of sodium chloride in water to a total volume of 0.500L. The formula weight of NaCl is 58.45 g/mol. What is the molar concentration of the solution?

Answer 1

The molar concentration of the solution is 4.0 M

Step-by-step explanation:

The molar concentration of a solution can be calculated using the formula:

Molarity (M) = moles of solute / liters of solution

In this case, we have 116.9g of sodium chloride, which has a formula weight of 58.45 g/mol. We can convert the grams of sodium chloride to moles by dividing by the formula weight:

moles of NaCl = 116.9g / 58.45 g/mol = 2.0 mol

The total volume of the solution is 0.500L. Plugging the values into the formula, we get:

Molarity (M) = 2.0 mol / 0.500L = 4.0 M