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
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"