SOLUTION: 10 liters of a solution has a concentration of 5% sodium hydroxide. It is mixed with 5 liters of a different solution, which has a concentration of 8% sodium hydroxide. What is the

Question 720881: 10 liters of a solution has a concentration of 5% sodium hydroxide. It is mixed with 5 liters of a different solution, which has a concentration of 8% sodium hydroxide. What is the new concentration of sodium hydroxide in the solution?
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
The amount of sodium hydroxide in the new solution will be 5% of 10 liters plus 8% of 5 liters. The amount of new solution is predictably near 10+5 liters. The result wanted in amount of pure sodium hydroxide divided by amount of the resulting solution, multiplied by 100 in case decimal fractions were used. The concentration would be assumed % weight per volume.
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