Chemistry - Mole Concept Question with Solution | TestHub

ChemistryMole ConceptLaws of Chemical CalculationsEasy2 minQB

ChemistryEasysingle choice

KMnO₄ reacts with oxalic acid according to the reaction:

$2 K M n O_{4} + 5 C_{2} O_{4}^{-} + 16 H^{+} ⟶ 2 M n^{2 +} + 10 C O_{2} + 8 H_{2} O$

Then, 20 mL of 0.1 M KMnO₄ is equivalent to:

Answer:

Solution:

$2 \times$ moles of $KMnO_{4} = 5 \times$ moles of oxalic acid

mmol of KMnO₄ = $0.1 \times 20 = 2$ mmol,

so mmol of H₂C₂O₄ = $2 \times \frac{5}{2} = 5$ mmol.

Stream:JEESubject:ChemistryTopic:Mole ConceptSubtopic:Laws of Chemical Calculations

⏱ 2mℹ️ Source: QB

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