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kupik [55]
4 years ago
10

An empty cylindrical canister 1.50 m long and 91.0 cm in diameter is to be filled with pure oxygen at 25.0 C to store in a space

station. To hold as much gas as possible, the absolute pressure of the oxygen will be 21.7atm . The molar mass of oxygen is 32.0g/mol .Finda. how many moles of oxygen does this canister hold?b. For someone lifting this canister, by how many kilograms does this gas increase the mass to be lifted?
Physics
1 answer:
erma4kov [3.2K]4 years ago
8 0

Answer:

Part a)

n = 858.5 moles

Part b)

w = 27.47 kg

Explanation:

Volume of the cylindrical container is given as

V = \pi r^2 L

now we have

V = \pi(\frac{0.91}{2})^2(1.50)

V = 0.97 m^3

pressure of the gas is given as

P = 21.7 atm

P = 21.7 \times 1.01 \times 10^5

P = 2.19 \times 10^6 Pa

Now we have

PV = nRT

(2.19 \times 10^6)(0.97) = n(8.31)(273 + 25)

n = 858.5 moles

Part b)

Mass of the container is increased as the mass of the gas

\frac{w}{M} = 858.5

\frac{w}{0.032} = 858.5

w = 27.47 kg

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