1. How many grams of potassium permanganate are needed to completely oxidize 2g
ID: 474881 • Letter: 1
Question
1. How many grams of potassium permanganate are needed to completely oxidize 2g of chlorotoluene?2. Show correctly balanced oxidation reduction equation for this reaction. Balance equation based on the correct number of electrons gained and lost.
1. How many grams of potassium permanganate are needed to completely oxidize 2 g of chlorotoluene? Show a correctly balanced oxidation-reduction equation for this reaction. It is easiest to determine the oxidation state of the methyl carbon of the toluene and the carbonyl carbon of the acid. Also, determine the oxidation states for the Mn in both the permanganate ion and the Mno2. Balance the equation based on the correct number of electrons gained and lost. KMno HCI OH water/A HoO CH
Explanation / Answer
Answer
C6H4ClCH3 + 2 KMnO4 C6H4ClCOOK + 2 MnO2 + H2O + KOH
(2 g C6H4ClCH3) / (126.5835 g C6H4ClCH3/mol) x (2 mol KMnO4 / 1 mol C6H4ClCH3) x
(158.0339 g KMnO4/mol) = 5 g KMnO4
KMnO4: Mn{7+}
MnO2: Mn{4+}
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