Question

5. What is the mass of 1 molecule of O2?
6. What is the mass of 2 mol of H2SO4?
7. What is the density of O2 at STP?
8. 3 L of a gas weighs 2 g. What is the molecular mass?
9. What volume does 22g of CO2 at STP occupy?
10. How many atoms of Hydrogen are in 67.2 L of H2 at STP?

Answer 1

Answer:

5. 32 amu

6 .196 g

7. 1.43 g L

8. The molecular mass is 1.4 gms per litre

9. 11.2 litres

10.