1 M NaOH solution was slowly added in to 1000 mL of 183.75 g impure `H_(2)SO_(4)` solution and the following plot was obtained. The percentage purity of `H_(2)SO_(4)` sample and slope of the curve respectively are:
A
`75%`
B
`60%`
C
`80%`
D
None of these
Text Solution
Verified by Experts
The correct Answer is:
C
`1M NaOH` solution was slowly………….. Moles of NaOH consumed when reacted with `H^(+) = 3xx1` (because `3L` of NaOH is added with `1M` cons.) moles of `H_(2)SO_(4)` present in sample `= 1.5` (because every `H_(2)SO_(4)` has `2H^(+)`) weight of `H_(2)SO_(4)` in sample `= 1.5xx98 = 147g` `%` purity `= (147)/(183.75)xx100=80%`
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