In a chemistry class, 6 liters of a 4% silver iodide solution must be mixed with a 10% solution to get a 6% solution. How many liters of the 10% solution are needed?
A)6 liters
B)4 liters
C)2 liters
D)3 liters

Question

Quizplus · Accepted Answer

To solve this, we use the equation for mixture problems: (amount of substance in first solution) + (amount of substance in second solution) = (amount of substance in final solution). Here, it translates to (6 liters * 4%) + (x liters * 10%) = (6 liters + x liters) * 6%. Solving this equation gives x = 3 liters.

In a Chemistry Class, 6 Liters of a 4% Silver