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An organic compound weighing 0.31 g gave...

An organic compound weighing `0.31 g` gave `0.444 g` of magnesium pyrophosphate in the estimation of phosphorus by the Carius method. The percentage of `P` in the compound is

A

`30`

B

`15`

C

`60`

D

`40`

Text Solution

Verified by Experts

The correct Answer is:
D
`%` of `P = (62)/(222) xx ("Mass of" Mg P_(2)O_(7))/("Mass of" o .c) xx 100%`
`= (62)/(222) xx (0.444 g)/(0.31 g) xx 100% = 40%`
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