Question

A solution contains 225 g of sodium chloride, NaCl, dissolved in enough water to make a 0.25 L of solution. What is the molarity of the solution?

A. 3.88 M, B. 1.03 M, C. 1.5 M, D. 15.5 M

Answer 1

Answer: The correct answer is option D.

Step-by-step explanation:

Mass of the NaCl = 225 g

Volume of the solution ,V = 0.25 L

`Molarity=\frac{\text{Mass of the NaCl}}{\text{Molar mass of the NaCl}* V(L)}=(225 g)/(58.44 g/mol* 0.25 L)=15.4004 mol/L`

15.4004 mol/L is the molarity of the solution. The most closest option to our answer is option D.