Question

15 gm of methyl alcohol is dissolved in 35 g of water .the weight percentage of methyl alcohol in solution is
(1) 30% (2) 50%
(3) 80% (4) 70%​

Answer 1

Answer:

A (30%)

Explanation:

Total mass of solution =(15+35)g=50gram mass percentage of methyl alcohol

$\frac{mass of methyl alcohol}{mass of solution}$ X 100

$\frac{15}{5}$ X 100 = 30%

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