A 1.00-mole sample of neon gas occupies volume of 24.4 liters at 298 K and 101.3 kilopascals in the space below. How do you calculate the density of this sample?

1 Answer
Meave60
Nov 4, 2016

The density of Ne is #"0.901 g/L"# at #"25"^@"C"#.

Explanation:

#"density"="mass"/"volume"#

The density of a substance will vary with temperature because temperature affects volume. In this case, the density of neon is calculated at ambient temperature of #25^@"C"#. #(298-273=25)#

#"1.00 mole of neon has a mass of 20.1797 g"#. This is its atomic weight on the periodic table, but in grams.

The volume is given as #"22.4 L"#.

To calculate its density, divide its mass by its volume.

#"density"_"Ne"=(20.1797"g")/(22.4"L")="0.0901 g/L"#

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