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statuscvo [17]
3 years ago
13

Determine the total volume of a balloon if it is inflated with 2.50g helium at 180C and 0.87atm.

Chemistry
1 answer:
puteri [66]3 years ago
5 0

Answer:

V = 267.2 L

Explanation:

Given data:

Volume of balloon = ?

Mass of helium = 2.50 g

Temperature of gas = 180°C

Pressure = 0.87 atm

Solution:

Number of moles of helium:

Number of moles = mass/molar mass

Number of moles = 2.50 g/ 4 g/mol

Number of moles = 0.625 g

Volume of helium:

PV = nRT

R = general gas constant = 0.0821 atm.L/mol.K

0.87 atm× V = 0.625 mol × 0.0821 atm.L/mol.K×453 K

V = 232.45 atm.L /0.87 atm

V = 267.2 L

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