Question

If 18.0 g of hydrochloric acid (HCl) is dissolved in water to make 0.500 L of solution, what is the molarity of the solution?

A. 0.724 M

B. 0.986 M

C. 3.20 M

Answer 1

Answer:

B

Explanation:

molar mass of hcl is 36.46 g/mol

18/36.46=.494 mol

.494 mol / .5 L = .988 M

closest to B, difference is because of rounding