1.

20 ml of a solution of a weak monobasic acid neutralizes 22.18 ml of solution of NaOH and 20 ml of N/10 HCl neutralizes 21.5 ml of the same NaoH solution. The normality for the acid is nearly

Answer»

10 N
1 N
0.10 N
100 N

SOLUTION :`N_(1)V_(1)=N_(2)V_(2)`
`N_(1)xx10=N_(2)xx22.18`
`N_(1)=(N_(2)xx22.18)/(20)`
NAOH solution=HCl solution
`N_(2)xx21.5=(1)/(10)xx20`
`N_(2)=(20)/(10xx21.5)`
By EQ. (i) and (ii)
`N_(1)=(20xx22.18)/(20xx10xx21.5)=(22.18)/(215)=0.1N`.


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