Question

Evaluate Yourself
3a) Calculate the number of moles
present in 9 g of ethane.
3b) Calculate the number of molecules
of oxygen gas that occupies a volume
of 224 ml at 273 K and 3 atm pressure.​

Answer 1

Answer:

3a 1/2 moles

3b 3

Explanation:

here pv= nrt

moles = weight /mw