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Alchen [17]
2 years ago
7

Explain how the rate of diffusion of a gas is related to its molar mass.

Chemistry
1 answer:
Alex73 [517]2 years ago
5 0

The molar mass of the unknown gas is 450.56 g/mol

<h3>Graham's law of diffusion </h3>

This states that the rate of diffusion of a gas is inversely proportional to the square root of the molar mass i.e

R ∝ 1/ √M

R₁/R₂ = √(M₂/M₁)

  • How to determine the molar mass of the gas
  • Rate of unknown gas (R₁) = R
  • Rate of CO₂ (R₂) = 3.2R
  • Molar mass of CO₂ (M₂) = 44 g/mol
  • Molar mass of unknown gas (M₁) =?

R₁/R₂ = √(M₂/M₁)

R / 3.2R = √(44 / M₁)

1 / 3.2 = √(44 / M₁)

Square both side

(1 / 3.2)² = 44 / M₁

Cross multiply

(1 / 3.2)² × M₁ = 44

Divide both side by (1 / 3.2)²

M₁ = 44 / (1 / 3.2)²

M₁ = 450.56 g/mol

Learn more about Graham's law of diffusion:

brainly.com/question/14004529

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