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The pH of the aqueous solution containin...

The pH of the aqueous solution containing 0.49 g `H_(2)SO_(4)` in one litre is

A

2

B

1

C

1.7

D

0.3

Text Solution

Verified by Experts

The correct Answer is:
A
w = 0.49 g
v = 1L = 1000 ml
GMW of`H_(2)SO_(4) = 98`
GEW of `H_(2)SO_(4) = 98/2 = 49`
`:. N of H_(2)SO_(4) = w/GEW xx 1000/V(ml) = 0.49/49 xx 1000/1000 = 10^(-2)N`
`pH = -"log"[H^(+)] = -"log"[10^(-2)] = -(-2)"log"_(10) = 2`
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