Question

How many liters of a 20% acid solution should be mixed with 30 liters of 50% acid solution in order to obtain a 40% solution?

Answer 1

Sorry, misread. Concentration of a solution is written as M/V or moles over volume. First, find the final volume. You have 30 liters of the second solution and you want to add some amount, lets call this X, liters of the first to it so what would your final volume be in terms of X?

Answer 2

Still not making sense