If 32.6mL of 0.0118M permanganate solution are used to titrate a sample of oxala
ID: 687515 • Letter: I
Question
If 32.6mL of 0.0118M permanganate solution are used to titrate a sample of oxalate, how many mmole of oxalate are in the unknown?Explanation / Answer
The balanced reaction of the titration of permanganate withoxalate is - 2 MnO4-(aq) + 5C2O42-(aq) + 16H+(aq) ---> 10CO2(g) + 2 Mn2+(aq) + 8H2O(l)Therefore number of moles of permanganate present in thesolution = 0.0118 mol/L * 0.0326 L = 0.0003846 mole Thus number of moles of oxalate is required for reaction =0.0003846 mol*(5 mol C2O42-/ 2 MnO4-) = 0.0009617 mol = 0.9617 mmol
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.