Equilibrium Question 46
Question: $ 100ml $ of $ 0.2MH_2SO_4 $ is added to $ 100ml $ of $ 0.2MNaOH. $ The resulting solution will be [BHU 1996]
Options:
A) Acidic
B) Basic
C) Neutral
D) Slightly basic
Show Answer
Answer:
Correct Answer: A
Solution:
M.eq. of 0.2M $ H_2SO_4 $
$ =\frac{2\times 0.2M}{1000}\times 100=0.04 $ m/l M.eq. of .2M $ NaOH $
$ =\frac{0.2}{1000}\times 100=0.02 $ m/l left $ [{H^{+}}]=.04-.02=.02 $ . Total volume $ =200=\frac{.02}{200}=.0001={10^{-4}} $ M $ pH=4 $ .
