Solutions Question 174
Question: The mole fraction of water in 20% aqueous solution of $ H_2O_2 $ is [EAMCET 1993]
Options:
A) $ \frac{77}{68} $
B) $ \frac{68}{77} $
C) $ \frac{20}{80} $
D) $ \frac{80}{20} $
Show Answer
Answer:
Correct Answer: B
Solution:
Mole fraction of $ H_2O $ = $ \frac{\frac{80}{18}}{\frac{80}{18}+\frac{20}{24}} $ = $ \frac{68}{77} $ .
