Question

What is the volume of 15.2 grams of SO2 at STP?

Answer 1

5.512 litres is the volume of 15.2 grams of sulphur dioxide gas at STP.

Step-by-step explanation:

Data given:

mass of sulphur dioxide = 15.2 grams

conditions is at STP whech means volume = 22.4 litres

atomic mass of sulphur dioxide = 64.06 grams/mole

Number of moles is calculated as:

number of moles =
`(mas)/(atomic mass of 1 mole)`

Putting the values in the equation:

number of moles =
`(15.2)/(64.06)`

= 0.23 moles

Assuming that sulphur dioxide behaves as an ideal gas, we can calculate the volume as:

When 1 mole of sulphur dioxide occupies 22.4 litres at STP

Then 0.23 moles of sulphur dioxide occupies 22.4 x 0.23

= 5.152 litres is the volume.