Question 6 chap 4 Ozone molecules in the stratosphere absorb much of the harmful

Question

Question 6 chap 4
Ozone molecules in the stratosphere absorb much of the harmful radiation from the sun. How many ozone molecules are present in 2.00 L of air under the stratospheric ozone conditions of 267 K temperature and 1.35 × 103 atm pressure?
Question 6 chap 4
Ozone molecules in the stratosphere absorb much of the harmful radiation from the sun. How many ozone molecules are present in 2.00 L of air under the stratospheric ozone conditions of 267 K temperature and 1.35 × 103 atm pressure?

Ozone molecules in the stratosphere absorb much of the harmful radiation from the sun. How many ozone molecules are present in 2.00 L of air under the stratospheric ozone conditions of 267 K temperature and 1.35 × 103 atm pressure?

Explanation / Answer

from ideal gas equation,

n = no of mole of ozone = PV/RT

      = (1.35*10^-3*2/(0.0821*267))

      = 1.23*10^-4 mol

No of molecules of O3 present in sample = n*N0

      = 1.23*10^-4*6.023*10^23

      = 7.41*10^19 molecule.

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