3. Which would have the greatest volume at standard temperature and pressure: 50 grams of helium gas, 50 grams of
liquid water, or 50 grams of solid iron? Explain your answer below.

Asuspension of yeast cells is being grown under anaerobic conditions such that glucose is degraded to ethanol and carbon dioxide. if one wishes to follow this process by monitoring the release of 14co2, at which positions in the glucose molecule would the 14c label need to be incorporated?