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ChemistryElectrochemistryGalvanic cells/Nernst Equation/Concentration CellsEasy2 minPYQ_2022

ChemistryEasysingle choice

How many Faraday of electricity is required to produce $5 g$ of magnesium from magnesium chloride? (Molar mass Mg $= 24 g mol^{- 1}$ )

Answer:

Solution:

$Mg^{+ 2} + 2 e^{-} \to Mg 2 mol 1 mol \frac{5}{24} = 0.208 mol Mg ∴ Mol of charge required or faraday of change required = 0.208 \times 2 = 0.416 F$

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

⏱ 2mℹ️ Source: PYQ_2022

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