Solutions Question 223
Question: What is the molarity of $ H_2SO_4 $ solution, that has a density 1.84 gm/cc at $ 35^{o}C $ and contains solute 98% by weight [AIIMS 2001]
Options:
A) (a] 4.18 M
B) 8.14 M
C) 18.4 M
D) 18 M
Show Answer
Answer:
Correct Answer: C
Solution:
98% $ H_2SO_4 $ means 98g $ H_2SO_4 $ in 100g solution. $ \frac{100}{1.84}cc=54.3cc $ ; $ 98gH_2SO_4=1,mol $ Hence molarity $ =\frac{1}{54.3}\times 1000=18.4M $
