1.

The mass of 11.2 L of ammonia gas at S.T.P. is

Answer»

`8.5 g`
`85 g`
`17 g`
`1.7 g`

SOLUTION :MOLAR mass of `NH_(3)=14+3xx1=17g MOL^(-1)`
`:.` Mass of 22.4 L of `NH_(3)` at S.T.P. = 17 g
`:.` Mass of 11.2L of `NH_(3)` at S.T.P. = 8.5 g


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