Some Basic Concepts Of Chemistry Question 145
Question: 15 grams of methyl alcohol is dissolved grams of water. What is the mass percent methyl alcohol in solution?
Options:
A) 30%
B) 50%
C) 70%
D) 75%
Show Answer
Answer:
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% $
