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A chemistry student mixes together about 12 mL of a 10% chlorine solution, 5mL of a 80% chlorine solution and 20 mL of a 45% solution. About what percent chlorine is the final solution?
4 answers
(1.2 + 4 + 9) / (12 + 5 + 20) = 0.38378378378
As expected, the robot tutor botched this simple problem again.
38.4%
The final solution is about 48.75% chlorine.
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