Question

Сколько кг этанола получается при брожении глюкозы, если выделилось 11,2 м3 CO2?

Answer 1

543 кг этанола получается

Answer 2

C6H12O6=2C2H5OH+2CO2
x=11.2*92/44.8=23 кг

Answer 3

Ethanol Production from Glucose Fermentation

To calculate the amount of ethanol produced from the fermentation of glucose, we can use the stoichiometry of the reaction. The balanced chemical equation for the fermentation of glucose to ethanol and carbon dioxide is:

C6H12O6 → 2 C2H5OH + 2 CO2

Given that 11.2 m^3 of CO2 is produced, we can calculate the amount of ethanol produced using the stoichiometric ratio from the balanced equation.

The molar ratio of CO2 to ethanol in the reaction is 2:2, which simplifies to 1:1. This means that for every mole of CO2 produced, one mole of ethanol is also produced.

Using this information, we can calculate the amount of ethanol produced.

Calculation

The molar volume of a gas at standard temperature and pressure (STP) is approximately 22.4 L/mol. Converting 11.2 m^3 to liters: 11.2 m^3 * 1000 L/m^3 = 11200 L

Now, we can calculate the moles of CO2 produced: 11200 L / 22.4 L/mol = 500 moles of CO2

Since the molar ratio of CO2 to ethanol is 1:1, the moles of ethanol produced will also be 500.

Conclusion

Therefore, when 11.2 m^3 of CO2 is produced during the fermentation of glucose, approximately 500 moles of ethanol are also produced.