1.

Calculate the density of N_(2) gas at S.T.P. ?

Answer»

<P>`1.250 g//L`
`0.628 g//L`
`2.450 g//L`
`1.42 g//L` 

SOLUTION :`d = (PM)/(RT)` , Substituting the values, `P = 1 atm, M = 28, R = 0.0821"LIT". "atm"."Mole"^(-1) K^(-1)` and `T = 273 K. d =(1 xx 28)/(0.0821 xx 273)= 1.25078 GM // "litre"`


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