Question

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​

Answer 1

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 2

Answer:

C) 100 mL is the correct option.