Determine the amount of carbon dioxide CO2 that is generated by the combustion of 3 g of carbohydrate.

1. We calculate the chemical amount of carbon:

n (C) = m (C): Mr (C) = 3: 12 = 0.25 mol;

2.the chemical amount of the obtained carbon dioxide and the initial carbon are equivalent:

n (CO2) = n (C) = 0.25 mol;

3.determine the volume of carbon dioxide:

V (CO2) = n (CO2) * Vm = 0.25 * 22.4 = 5.6 liters.

Answer: 5.6 liters.



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