Solve the problem.Chandra has 3 liters of a 15% solution of sodium hydroxide in a container. What is the amount and concentration of sodium hydroxide solution she must add to this in order to end up with 5 liters of 19% solution?
A. 2 L of 23% solution
B. 2 L of 28% solution
C. 2 L of 26% solution
D. 2 L of 25% solution
Answer: D
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