Name: ________________________________ U4M2 Extra
Credit
ID: ___________________________________
Certain salts of benzoic acid have been used as food additives for
decades. Potassium benzoate
is an additive that prevents the growth of mold on food. Potassium
benzoate can be made by
the reaction of potassium permanganate and toluene.
1. Balance the equation.
2. Suppose you mix 2.457 g of toluene with 9.46 g of KMnO4. What is
the limiting reagent?
3. What is the maximum amount of potassium benzoate that will be
produced in the reaction
described in part 2?
4. You do this reaction and actually get 3.512 g of potassium
benzoate. What is your percent
yield for the reaction?
5. How many carbon atoms are in 2.457 g of toluene?
C7H8 + KMnO4 KC7H5O2 + MnO2 + KOH + H2O
Toluene potassium
permanganate potassium
benzoate
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Name: ________________________________ U4M2 Extra Credit ID: ___________________________________ Certain salts of benzoic acid have been used as...