Agas diffuses 1/8 times faster than hydrogen gas. what is the molar mass of the gas?
129.02 g/mol
136.44 g/mol
140.81 g/mol
145.45 g/mol

129.02 g/mol.

Explanation:

∨ ∝ 1/√M.

where, ∨ is the rate of diffusion of the gas.

M is the molar mass of the gas.

∵ ∨₁/∨₂ = √(M₂/M₁).

∨₁ is the rate of effusion of H₂ gas.

∨₂ is the rate of effusion of the unknown gas.

M₁ is the molar mass of H₂ gas (M₁ = 2.016 g/mol).

M₂ is the molar mass of the unknown gas (M₂ = ??? g/mol).

∨₂ = 1/8∨₁

∨₁/∨₂ = 8.0.

∵ ∨₁/∨₂ = √(M₂/M₁)

∴ (8.0) =√(M₂)/(2.016 g/mol)

∴ (8.0)² = (M₂)/(2.016 g/mol)

∴ M₂ = (8.0)²(2.016 g/mol) = 129.024 g/mol ≅ 129.02 g/mol.

explanation:

venn diagram is pictorial representation with of circles showing the relation between two finite sets or things. the intersection part of two circles conveys the relation present in between those sets or things.

here in the venn diagram of sand and salt two circles represent sand and salt. but the area falling under the intersection of these circle represents the mixture of sand and salt.

so, in a venn diagram the mixture will be placed in a middle that is in between the intersection of two circles.