Two solutions of a substance (non electrolyte) are mixed in the following manner 480 ml of 1.5M first solution + 520 mL of 1.2M second solution. What is the molarity of the final mixture (a) 1.20 M (b) 1.50 M (c) 1.344 M (d) 2.70 M 42.
Answer. = 480 × 1.5 + 520 × 1.2 = 720 + 624 = 1344. Total volume = 480 + 520 = 1000. Molarity of the final mixture = (1344)/(1000) = 1.344M.
