Question

At STP, 0.44gm of a gas has the volume of 224cm³. What is the molar

mass of the gas​

Answer 1

one mole of CO2 at STP occupies 22.4 liters. Since a liter is defined as the volume contained within a 10 cm x 10 cm x 10 cm cube (1000 cm^3), you can do a proportion:

1mole/22,400 cm^3 = x/224 cm^3;

x = 0.01, so 0.01 mole of CO2 occupy 224 cm^3 at STP

CO2 has a molar mass of 44.0 g/mol,

(0.01 mol CO2)(44.0gCO2lmol CO2) = 0.44 g CO2

Answer 2

Answer:

44g

Explanation:

22400 cm3. of a gas at STP =. molar mass

Hence

224cm3 of gas = 0.44g

22400cm3 of gas = (0.44g/224cm3)×(22400cm3)

= 44g