84 g of a gas occupies the same volume as 96.00 g of oxygen under similar conditions of temperature and pressure. The molecular weight of the gas is ( O =16)

Question

84 g of a gas occupies the same volume as 96.00 g of oxygen under similar conditions of temperature and pressure. The molecular weight of the gas is ( O =16) (A) 36.5 (B) 28 (C) 14 (D) 18.2

Tardigrade Admin · Accepted Answer

Equal volumes are occupied by equal number of moles of gases under identical conditions of temperature and pressure. (84/M)=(96/32) ⇒ M=28

Q. $84 g$ of a gas occupies the same volume as $96.00 g$ of oxygen under similar conditions of temperature and pressure. The molecular weight of the gas is $(O = 16)$

36.5

28

14

18.2

Equal volumes are occupied by equal number of moles of gases under identical conditions of temperature and pressure.

$\frac{84}{M} = \frac{96}{32}$

$\Rightarrow M = 28$

Q. 84g of a gas occupies the same volume as 96.00g of oxygen under similar conditions of temperature and pressure. The molecular weight of the gas is (O=16)

36.5

28

14

18.2

Equal volumes are occupied by equal number of moles of gases under identical conditions of temperature and pressure. M84​=3296​ ⇒M=28

Q. $84 g$ of a gas occupies the same volume as $96.00 g$ of oxygen under similar conditions of temperature and pressure. The molecular weight of the gas is $(O = 16)$

Equal volumes are occupied by equal number of moles of gases under identical conditions of temperature and pressure.

$\frac{84}{M} = \frac{96}{32}$

$\Rightarrow M = 28$