A) 30%
B) 50%
C) 70%
D) 75%
Correct Answer: A
Solution :
[a] Total mass of solution = (15 + 35) gram = 50 gram |
Mass percentage of methyl alcohol |
\[=\frac{\text{Mass of methyl alcohol}}{\text{Mass of solution}}\times 100\] |
\[=\frac{15}{50}\times 100=30%\] |
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