Question

4g NaCl and NaOH mixture is completely neutralised by 100 ml of 0.4M HCl solution The % of NaCl in the mixture is?​

Answer 1

Explanation:

ANSWER

We know that :

N

1

V

1

=N

2

V

2

Normality=Molarity×Basicity

For sulphuric acid, the basicity is 2.

∴N

1

=0.1×2=0.2N

V

1

= ?

N

2

=0.1×1=0.1N

V

2

=40ml

0.2×V

1

=0.1×40

V

1

=20ml

Therefore, the option is C.

Answer 2

Answer:

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