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Mn2+(aq) KMnO2(s) MnO4−(aq) MnO42−(aq) a) be sure to include the name of each of these species an...

Mn2+(aq) KMnO2(s) MnO4−(aq) MnO42−(aq)

a) be sure to include the name of each of these species and the oxidation state of manganese in each.

b) what is the reducing agent, and why sodium bisulfite is a good reducing agent.

c.) Based upon what you know about acids and bases, and given that manganese will be reduced by sodium bisulfite, make a prediction about how the oxidation-reduction reaction will be affected by acidic, basic, or neutral media.

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Answer #1

Oxidation state of element in its ionic form is equal to the charge on ion.

MnO2. Let oxidation state of Mn is x.

x + 2(-2) =0

x= +4

In acidic medium reactions MnO4- will converts to Mn2+, while oxidising the other species in the reaction. In strongly alkaline medium potassium permanganate converts to manganate ion. In neutral medium it converts to MnO2 , but after some time medium of reaction mixture becomes alkaline.

n) よ十 nanganese (IT) 1 manganacte n gahate iy A chemical Comtound oSfuch neduce tto other, cemrund C) 사 3 Nans, t,lfkon ㅡ -)

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