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The P^(H) of a dibasic acid is 3.699. It...

The `P^(H)` of a dibasic acid is 3.699. Its molarity is

A

` 2xx10^(-4)M`

B

` 4xx10^(-4) M`

C

` 2xx10^(-3) M`

D

` 1xx 10^(-4) M`

Text Solution

Verified by Experts

The correct Answer is:
D
` pH= 3. 699 ~~ 3.7 `
` log [H^(+) ] = - pH=- 3.7 =-4 + 0.3 = overset(-) 4.3`
` [H^(+)] = "anti long " (overset( -) 4.3) =2 xx10 ^(-4) N `
` ["acid"] = 2xx 10 ^(-4) N rArr M = (N)/( n- f) = 1xx 10 ^(-4) M `
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AAKASH SERIES-IONIC EQUILIBRIUM -LECTURE SHEET (EXERCISE -II LEVEL -I (MAIN) (Straight Objective Type Questions))
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