Question

0.28g of gas occupies 224ml at STP.the gas could be. A.) CO,B.) C2H4,C.)N2,D.)All Of These

Answer 1

The answer could be C)N2

Answer 2

Answer: D.)All Of These

Explanation: According to Avogadro's law, 1 mole of every gas occupies 22.4 L of volume at STP and weighs equal to the molar mass.

Thus a gas which occupies 22.4 L weighs equal to its molar mass.

224 ml of gas weighs = 0.28 g  

22400ml or 22.4L of gas weighs =$\frac{0.28}{224}\times 22400=28g$

Molar mass of $CO$ = 28g

Molar mass of $C_2H_4$ = 28g

Molar mass of $N_2$ = 28g