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25 ml of (N)/(10) caustic soda solution ...

25 ml of `(N)/(10)` caustic soda solution exactly neuralised 20ml of an acid solution contaning `7.875gm` of acid per litre. What will be the equivalent mass of acid?

Text Solution

Verified by Experts

`N_(1)V_(1) = N_(2)V_(2)`
(NaOH) (Acid)
` 1/10 xx 25 = N_(2) xx 20`
` N_(2) = 25/(10 xx 20) = 0.125`
Strength = Normality `xx` Eq.mass
Eq. mass of the acid = `(7.875)/(0.125)`
` = 63.00`
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