The Ozone Molecules in the Stratosphere Absorb Much of the Ultraviolet

Multiple Choice

The ozone molecules in the stratosphere absorb much of the ultraviolet radiation from the sun,protecting life on Earth.At a certain altitude,the temperature of the stratosphere is 240 K and the partial pressure of ozone is 1.4 × 10^-7 atm.Calculate the number of ozone molecules present in 1.00 L of atmosphere at that altitude.

A) 2.1 × 10¹⁵ molecules of O₃
B) 4.3 × 10¹⁵ molecules of O₃
C) 8.0 × 10³¹ molecules of O₃
D) 1.8 × 10³² molecules of O₃