0.126 g of an acid is needed to complete...

0.126 g of an acid is needed to completely neutralise 20 mL 0.1 N NaOH solution. The equivalent weight of the acid is

Text Solution

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The correct Answer is:

Equivalents of acid = Equivalents of base
`=(NV)/1000 =(0.1 xx 20)/1000 = 2 xx 10^(-3)`
No. of gram equivalents `=("mass")/("Equivalent mass")`
`2 xx 10^(-3) = 0.126/("Equivalent mass")`
Equivalent mass `=0.126/(2 xx 10^(-3)) = 126/2 = 63`

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0.1914 g of an organic acidi s dissolved in about 20 ml of water. 25 ml of 0.12 N NaOH is required for the complete neutralizatioonf the acid solution. The equivalent weight of the acid is

`65.0`

`64.0`

`63.8`

`62.5`

0.146g of an acid requires 20 ml of 0.1 N NaOH for complete neutralization. The equivalent weight of the acid is

0.1914g of an organic acid is dissolved in approx. 20 ml of water. 25 ml of 0.12 N NaOH required for the complete neutralization of the acid solution. The equivalent weight of the acid is

63.8

62.5