Question

How many grams  are in 2.25 moles of propane, C3H8. ​

Answer 1

Given - Number of moles : 2.25

Molecule : Propane

Find - Grams

Solution - Number of moles is related with weight and molecular weight through the formula given as follows -

Number of moles = weight/molecular weight.

Molecular weight of propane is 44.1 gram/mole.

Now, keeping the values in formula to calculate mass.

2.25 = mass/44.1

Mass = 44.1*2.25

Mass = 110.25 grams

Hence, the 2.25 moles of propane will weigh 110.25 grams.