How many millilitres of 0.1 M H2SO4 must be added to 50 mL of 0.1 M NaOH to give a solution that has a
concentration of 0.05 M in H2SO4?
A) 400 ml
B) 200 ml
C) 100 mL
D) None of these
please tell detailed solution
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How many millilitres of 0.1 M H2SO4 must be added to 50 mL of 0.1 M NaOH to give a solution that has a
concentration of 0.05 M in H2SO4?
A) 400 ml
B) 200 ml
C) 100 mL
D) None of these
please tell detailed solution
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Answer:
C
Explanation:
When H
2
SO
4
is mixed with NaOH then neutralization reaction takes place,
and we have formula
N
1
V
1
−N
2
V
2
=N(V+V
2
)
normality = molarity× n-factor
n-factor for H
2
SO
4
= 2
let volume of H
2
SO
4
= x ml
so, putting the values we have
2×0.1×x−50×0.1=0.05(x+50)
on solving the equation we get,
x=100ml
so, millilitres of H
2
SO
4
added is 100 ml.
Answer:
C) 100 mL is the correct option.