Question

दिये गए M/20 मोहर लवण के घोल की मदद से दिए गए KMnO, के घोल की मोलरता ज्ञात करें।
10
Determine the molarity of the given KMnO4 solution with the help of supplied
M
Mohr's salt solution.
20​

Answer 1

Answer:

Titration of Mohr's salt against KMnO4 solution

Explanation:

In this titration, the reaction between Mohr's salt and KMnO4 is redox reaction and oxidation and reduction reaction occur simultaneously.

Oxidation half reaction – [Fe2+ → Fe3+ + e–] x 5

Reduction half reaction – MnO4– + 8H+ + 5e– → Mn2+ + 4H2O

(i) According to law of equivalence :

N1V1 = N2V2 (N1 and N2 are the normality of Mohr's salt and KMnO4 respectively) (V1 and V2 are the volume of Mohr's salt and KMnO4 respectively).

(ii)  Molarity of KMnO4 solution is

N = M x Number of electron gained

N = M x 5

M = N/5 moles/ litre

Answer 2

Answer:

diye Gaye M2 ocology Amal ke ghol ki madad se diye Gaye menu chhodkar ghol ki molarta anupat vidhi se gyat Karen