Question

What is the molarity of a solution made by diluting 500 mL of a 2.50 M solution to a final volume of 800 mL?

(a) 0.5265 M

(b) 1.5625 M

(c) 2.5689 M

(d) 3.4586 M

The question was posed to me in an online interview.

I'd like to ask this question from Concentration-II in portion Introductory Concepts of Chemical Process Calculation

Answer 1

Correct answer is (b) 1.5625 M

To elaborate: Molarity = Moles / Volume.