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Grade 8Physical Chemistry

  • During the electrolysis of molten alumine 13.5 g Al are deposited in one hour . What is charge in faraday passed ?
  • 3 F
  • 2 F
  • 1.5 F
  • 1.0 F

Profile image of mgayathri
9 Years agoGrade 8
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1 Answer

Profile image of Vikas TU
9 Years ago
moles of Al = >  13.5/27 => 135/270 moles.
Now from Farday’s law of electrolysis,
moles x n-factor = current x time/F
(137/270)*3 = q/F
q = 1.522F Coulamb.