Please calculate the equivalent weight if SO2 in the following reactions:?
b) 5 SO2 + 2 KMnO4 + 2 H2O = K2SO4 + 2 MnSO4 + 2 H2SO4
Answer:
Equivalent weight = Molecular mass / n
n is the number of the electrons
a) In SO2 S has oxidation number + 4 ; S has o.n. = 0
equivalent weight = 64 / 4 = 16
b) S goes from +4 to +6
equivalent weight = 64 / 2 = 32
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