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Potassium permanganate, or KMnO4, has a molar mass of 158g/mol. (39+55+16x4). % composition of K: 39/158=0.247=24.7%. % composition of Mn: 55/158=0.348=34.8%. % composition O: 64/158=0.405=40.5%.
Wiki User
∙ 8y ago
Wiki User
∙ 13y agoKMnO4 has a Molar mass of 158.04 g/mol
There are two possibillities:
1. KMnO4 as an oxidizer in acidic media:
MnO4- + 8 H+ + 5e- --> Mn2+ + 4H2O (gained 5 electrons from reductant)
I.e. Eq. wt. of KMnO4 = 158.04/5 = 31.61 grams/equivalent
2. KMnO4 as an oxidizer in basic media:
MnO4- + 2H2O + 3e- --> MnO2(s) + 4OH- (gained 3 electrons)
In which case, Eq. wt. of KMnO4 = 158.04/3 = 52.68 grams/equivalent
Wiki User
∙ 8y agoThe elemental composition of potassium permanganate is:
- oxygen: 40,52 5
- manganese: 34,80%
- potassium: 24,68 %
Wiki User
∙ 6y agoThe molar mass of KMnO4 is 158,034 g.
messia ellis
25% K, 35% Mn, 40% O
Wiki User
∙ 15y agoThe density id 2.703 g/mL
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KMnO4.
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The compound potassium permanganate has chemical formula KMnO4 Molecular mass of KMnO4 = 39.1 + 54.9 + 4(16.0) = 158.0 Mass of KMnO4 = amount of KMnO4 x Molecular mass of KMnO4 = 2.55 x 158.0 = 403g
