Hi,

I was confused about this problem.Please help.

 

1. If the Earth's ozone (O3) layer has a total volume of 1.00*10^20 km^3, a partial pressure of 1.6*10-9 atm, and a average temperature of 230K, how many ozone molecules are in the Earth's ozone layer?

a. 2.3 * 10^35 molecules

b. 5.1 * 10^35 molecules

c. 2.3 * 10^45 molecules

d. 5.1 * 10^45 molecules

 

2. In which case should N2(g) be more soluble in water?

a. the total pressure is 5 atm and the partial pressure of N2 is 1 atm

b. the total pressure is 3 atm and the partial pressure of N2 is 2 atm

c. the total pressure is 1 atm and the partial pressure of N2 is 0.03 atm

d. the total pressure is 1 atm and the partial pressure of N2 is 0.5 atm

 

3. How many liters of SO3(g) are produced at 25 degrees C and 1.00 atm from the combustion of 1.00 kg of coal which is 1.00% S by weight? Assume all teh sulfur in the coal ends up as SO3.

a. 0.640L

b. 5.08 L

c. 7.63 L

d. 11.4 L