Question

If I leave 750mL of 0.50M sodium chloride solution uncovered on a windowsill at 150mL of the solvent evaporates, what will the new concentration of the sodium chloride solution be?​

Answer 1

0.63 M

Step-by-step explanation:

(this is the opposite of a dilutions problem – the V2 value is smaller than V1, but otherwise the equation is no different.)