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Fermentation is a chemical process used to make alcoholic beverages like beer and wine, where sugar...
4. Fermentation is a chemical process used to make alcoholic beverages like beer and wine, where sugar (glucose) is turned into alcohol (ethanol) and carbon dioxide:
C6H12O6 (aq) -> 2 C2H5OH (aq) + 2 CO2 (g)
(glucose) (ethanol)
How many grams of ethanol will be made if you fermented 695 grams glucose? Molar mass of glucose is 180.18 g/mol. Molar mass of ethanol is 46.08 g/mol.
5. If you leave wine standing open to the air, oxygen will oxidize ethanol (the alcohol) to make acetic acid (which is vinegar):
C2H5OH (aq) + O2 (g) -> HC2H3O2 (aq) + H2O (aq)
(ethanol) (acetic acid)
How many grams of acetic acid will you make if 5.00 grams of oxygen gas reacted?
6. Consider again the reaction that takes place when you burn propane gas:
C3H8 (g) + 5 O2 (g) -> 3 CO2 (g) + 4 H2O (g) + Δ
a) Is this reaction endothermic or exothermic?
b) What would happen to the rate of reaction if there were a decrease in the concentration of oxygen?
c) What would happen to the rate of reaction if there were an increase in the concentration of propane?
C6H12O6 (aq) -> 2 C2H5OH (aq) + 2 CO2 (g)
(glucose) (ethanol)
How many grams of ethanol will be made if you fermented 695 grams glucose? Molar mass of glucose is 180.18 g/mol. Molar mass of ethanol is 46.08 g/mol.
5. If you leave wine standing open to the air, oxygen will oxidize ethanol (the alcohol) to make acetic acid (which is vinegar):
C2H5OH (aq) + O2 (g) -> HC2H3O2 (aq) + H2O (aq)
(ethanol) (acetic acid)
How many grams of acetic acid will you make if 5.00 grams of oxygen gas reacted?
6. Consider again the reaction that takes place when you burn propane gas:
C3H8 (g) + 5 O2 (g) -> 3 CO2 (g) + 4 H2O (g) + Δ
a) Is this reaction endothermic or exothermic?
b) What would happen to the rate of reaction if there were a decrease in the concentration of oxygen?
c) What would happen to the rate of reaction if there were an increase in the concentration of propane?