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marissa [1.9K]
2 years ago
8

Michelle and john are walking down the street deep in conversation

Chemistry
1 answer:
Olin [163]2 years ago
8 0

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A sample of Br2(g) takes 12.0 min to effuse through a membrane. How long would it take the same number of moles of Ar(g) to effu
IrinaVladis [17]

Answer:

6 mins

Explanation:

The time taken for Ar to effuse can be obtained as follow:

Time for Br₂ (t₁) = 12 mins

Molar mass of Br₂ (M₁) = 2 × 80 = 160 g/mol

Molar mass of Ar (M₂) = 40 g/mol

Time for Ar (t₂) =?

t₂/t₁= √(M₂/M₁)

t₂ / 12 = √(40/160)

Cross multiply

t₂ = 12 × √(40/160)

t₂ = 12 × 0.5

t₂ = 6 mins

Therefore, it will take 6 mins for the same amount of Ar to effused out.

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How many lone pairs are on the central atom of a molecule of RnCl4?
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My teacher said it is c
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In the "Design a Thermos" lab, the temperature of the thermos was compared with a container that was not insulated.
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B

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