Question

22. What is the volume of 0.1 M H2SO4 required in litres to neutralize completely 1 litre of a solution containing 20 gram of NaOH (EAMCET 2010 M] 1) 5-0 2) 0.5 3) 2-5 4) 10.0
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Answer 1

Explanation:

Molarity of NaOH=

molar mass×V

Weight×1000

=20x1000÷40×1000=0.5

Reaction: H 2SO4+2NaOH→Na2 SO 4 +2H2O

If 1 is for H2So4 and 2 is for NAOH

M1V1/1 = M2V2 / 2

0.1 × V1 = 0.5×1÷2

V1= 2.5