Question

objective: for this investigation, you will take a closer look at alcohol fermentation and how yeast produces energy. alcoholic fermentation starts with glucose and ends with carbon dioxide and alcohol. c₆h₁₂o₆→2co₂ + 2c₂h₅oh + 2atp glucose carbon dioxide ethanol energy how should we measure the amount of co₂ produced by the yeast in this flask?

Explanation:

Step1: Recall gas - volume relationship

The volume of a gas is proportional to the amount of the gas under constant temperature and pressure conditions (Avogadro's law).

Step2: Suggest a measurement method

One way is to collect the $CO_2$ gas produced in a gas - collection apparatus (e.g., by water displacement method). Measure the volume of water displaced by the gas, which is equal to the volume of $CO_2$ produced. Another way is to use a gas pressure sensor if the flask is a closed - system. The increase in pressure in the closed flask can be related to the amount of $CO_2$ gas produced using the ideal gas law $PV = nRT$.

Answer:

Collect the gas by water displacement method to measure its volume or use a gas - pressure sensor in a closed - system flask to measure the pressure change and calculate the amount of $CO_2$ using the ideal gas law.