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Chemistry - Electrochemistry Question with Solution | TestHub

ChemistryElectrochemistryGalvanic cells/Nernst Equation/Concentration CellsMedium2 minPYQ_2021

ChemistryMediumsingle choice

What is the number of moles of electrons passed when current of 5 ampere is passed through a solution of $FeCl_{3}$ for 20 minutes?

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Answer:

Solution:

$Q = I . t = 5 \times 20 \times 60 = 6000 C$ Charge of 1 mole electrons $= 96500 C$ no. of moles of electrons $= \frac{Q}{96500} = \frac{6000}{96500} ≃ 6.25 \times 1 0^{- 2}$

Stream:MHT_CETSubject:ChemistryTopic:ElectrochemistrySubtopic:Galvanic cells/Nernst Equation/Concentration Cells

⏱ 2mℹ️ Source: PYQ_2021

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