Question

A gas cylinder of volume 5.00 L contains 1.00 g of Ar and 0.500 g of Ne. The temperature is 275 K. Find the partial pressure of Ne.

Answer 1

Remember Dalton's Law. The partial pressure of a gas is the pressure it would exhibit in a container independent of any other gas present. So ignore the Ar present.
Use PV = nRT
V = 5.00L
P = solve
n = 0.5g/atomic mass Ne
R = you know.
T = given

Answer 2

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