Final answer:
The balanced chemical equation for the fermentation of sucrose by yeast is C₁₂H₂₂O₁₁ (aq) + H₂O (l) → 4 C₂H₅OH (aq) + 4 CO₂ (g), indicating the production of ethanol and carbon dioxide.
Step-by-step explanation:
The fermentation of sucrose (C₁₂H₂₂O₁₁) by yeast involves the reaction of sucrose with water to produce ethanol (C₂H₅OH) and carbon dioxide (CO₂). The balanced chemical equation for this reaction, based on the information provided in the question and references to similar fermentation processes, is as follows:
C₁₂H₂₂O₁₁ (aq) + H₂O (l) → 4 C₂H₅OH (aq) + 4 CO₂ (g)
This equation indicates that one molecule of sucrose and one molecule of water react to produce four molecules of ethanol and four molecules of carbon dioxide. The reaction rate of fermentation of sucrose can be calculated by monitoring the concentration of sucrose or ethanol, noting the stoichiometric coefficients that show ethanol is formed at four times the rate at which sucrose is consumed.