Question

What is the appropriate weight for the preparation of the required concentrations from the following oxidizing factors? Materials No. of electrons gained Molecular Weight (g/mol) Equivalent Weight (g/eq) Concentration Weight (gm) MnO4 → Mn2+ no. of e = 2N in 300 ml Potassium permanganate KMnO4 Potassium dichromate K2Cr2O7 Cr2O72-→ 2Cr3+ no. of e = 2M in 500 ml lodine 1221 no. of e = 3N in 2000ml molecular weight (g/mol) Equivalent weight of an oxidizing agent = no. of electrons gained Advanced Lab 10 2

Answer 1

Bh19t aa91 2 000 m) 126 A x 3 x2600 (ma297 - NI 126.99 au 7 I, +Le oa N 2530 126,9 2 2is.49 E4 9Hh1tor .b6 215-99 N : 35.49 ea, wel 2 2 215.99 9491 23,78 3DX2 WIOT N T 3 00 ml 23.18300 N/ <- ulo 3.789 N I 196Oml 981.973 2tn o t/6 Ht+Se 2Mn8 th0 811 .Bb g1u of Mnoy -0 Mol