What is the molarity of sodium chloride in a solution containing 0.50 mol of sodium chloride in 500 ml of water?

Explanation:

1) Data:

a) n = 0.50 mol

b) V = 500 ml

c) M = ?

2) Formula:

                       M = n / V (liter)

3) Conversion of units:

4) Solution:

Substitute in the formula:

The answer must be reported with two significant figures.

i'm pretty sure its b i might be wrong though!