  Potassium permanganate in acidic solution is used to titrate a solution of copper(I) ions, with which it reacts according toMnO4-(aq) + 5Cu+(aq)+8H3O+(aq)Mn2+(aq) + 5Cu2+(aq)+12H2O(l)A potassium permanganate solution is prepared by dissolving 23.14 g of KMnO4 in water and diluting to a total volume of 1.000 L. A total of 15.61 mL of this solution is required to reach the endpoint in a titration of a 200.0-mL sample containing Cu+(aq). Determine the concentration of Cu+ in the original solution.

Question

Potassium permanganate in acidic solution is used to titrate a solution of copper(I) ions, with which it reacts according to

MnO4-(aq) 5Cu+(aq)+8H3O+(aq)Mn2+(aq) + 5Cu2+(aq)+12H2O(l)

potassium permanganate solution is prepared by dissolving 23.14 g of KMnO4 in water and diluting to a total volume of 1.000 L. A total of 15.61 mL of this solution is required to reach the endpoint in a titration of a 200.0-mL sample containing Cu+(aq). Determine the concentration of Cu+ in the original solution.

Step 1

Given,

23.14 g of KMnO4

Volume of KMnO4 = 1000mL

Volume of copper ion = 200mL

Then number of moles of KMnO4 is calculated as,

Step 2

The above equation suggests that 5 moles of copper ions reacts with one mole of permanganate ion.  The number of moles of copper ions is calculated as,

Step 3

The concentration of copper i...

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