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aivan3 [116]
3 years ago
5

What is the mass of oxygen gas in a 12.2 L

Chemistry
1 answer:
baherus [9]3 years ago
4 0

Answer:

grams O₂ = 134 grams

Explanation:

PV = nRT => n = PV/RT

P = 8.15atm

V = 12.2 Liters

R = 0.08206L·atm/mol·K

T = 16.0°C + 273 = 289K

n = (8.15atm)(12.2L)/(0.08206L·atm/mol·K)(289K) = 4.2 moles O₂

grams O₂ = 4.2 moles O₂ x 32g/mol = 134 grams O₂

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Number of moles of oxygen = x

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initial pressure, p1 = 0.8 atm

final pressure, p2 = 1.10 atm

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n1 = x + y = 2y + y = 3y

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