If the Earth's Ozone (O₃)layer Has a Total Volume of 1.00

Multiple Choice

If the Earth's ozone (O₃) layer has a total volume of 1.00 × 10²⁰ km³,a partial pressure of 1.6 × 10^-9 atm,and an average temperature of 230 K,how many ozone molecules are in the Earth's ozone layer?

A) 2.3 × 10³⁵ molecules
B) 5.1 × 10³⁵ molecules
C) 2.3 × 10⁴⁵ molecules
D) 5.1 × 10⁴⁵ molecules