Question icon
Grade 11Physical Chemistry

Maximum no. of electrons are present in
1.2.24 lit of SO2 at N.T.P.
2.0.2 moles of NH3
3.1.5gm atoms of oxygen
4.2 gm atoms of sulphur
Please give me the detail solution of my question!

Profile image of Rankush
7 Years agoGrade 11
Answers icon

1 Answer

Profile image of Arun
7 Years ago

(i) 1 molecule of SO2 contains 28 electrons.

1 mole (22.4 L) of SO2 contains 6.023 x 1023 molecules of SO2.

Thus, 22.4 L of SO2 contains (6.023 x 1023 x 28) = 1.68 x 1025 electrons.

(ii) 1 molecule of NH3 contains 10 electrons.

1 mole of NH3 contains 6.023 x 1023 molecules of NH3.

Thus, 0.2 mole of NH3 contains (6.023 x 1023 x 10 x 0.2) = 1.205 x 1024 electrons.

(iii) 1 molecule of O2 contains 12 electrons.

1 mole (1 gram mole) of O2 contains 6.023 x 1023 molecules of O2.

Thus, 1.5 gram mole of O2 contains (6.023 x 1023 x 12 x 1.5) = 1.084 x 1025 electrons.

(iv) 1 atom of S contains 16 electrons.

1 mole atom of S contains 6.023 x 1023 atoms of S.

Thus, 2 mole atom of S contains (6.023 x 1023 x 16 x 2) = 1.927 x 1025 electrons.

Therefore, 2 mole atom of S contains the highest number of electrons.