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Question : How many mega coulombs of positive (or negative) charge is present in 2 mole of neutral hydrogen gas.

Doubt by Palak

Solution : 

Student Submitted Solution :

Text Solution : 

No. of molecules in 1 mole of substance = 6.02×10²³

So, No. of Hydrogen (H₂) molecules in 2 moles of Gas 

= 2×6.02×10²³
In 1 molecule of Hydrogen Gas (H₂) there would be 2 Positive charge (Protons) and 2 Negative charge (Electrons).
So N=2
Total No. of Positive charge or Negative charge in 2 moles of Hydrogen Gas
=2×2×6.02×10²³

Total Charge (q)
= Ne
=(2×2×6.02×10²³)×(1.6×10^-19)
=(24.08×10²³)×(1.6×10^-19)
=38.528×10⁴ C
=0.385×10⁶ C
=[(0.385×10⁶)/10⁶] MC
= 0.385 MC