A sample of Pure KHC 2 O 4 .H 2 C 2 O 4 .2H 2 O (three replaceable hydrogen) requires 4.62 mol of NaOH for titration. How many milli moles of KMnO 4 will the same sample react with.
Text Solution
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(1) Given Data:
Pure KHC 2 O 4 .H 2 C 2 O 4 .2H 2 O (Potassium hydrogen oxalate dihydrate) requires 4.62 moles of 
for titration.
We need to find out how many millimoles (mmol) of KMnO 4 will react with the same sample.
(2) Balanced Equation for Titration:
The titration reaction likely involves the neutralization of the acidic hydrogen atoms in KHC 2 O 4 .H 2 C 2 O 4 .2H 2 O by 
.
(3) Calculate moles of KHC 2 O 4 .H 2 C 2 O 4 .2H 2 O:
From the titration, 1 mole of 
reacts with 1 mole of 
.
(4) Convert moles to millimoles (mmol):
(5) Determine moles of 
required:
The reaction between KMnO 4 and 
involves oxidation of oxalate ions to carbon dioxide and manganese dioxide ( MnO 2 ).
The balanced equation might be:
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