Algae and ciliates live together in a closed vessel in the light. Ciliates consume 0.11 mol of glucose per week, algae – 0.12 mol.

Algae and ciliates live together in a closed vessel in the light. Ciliates consume 0.11 mol of glucose per week, algae – 0.12 mol. The total weekly glucose production is 0.25 mol. How will the oxygen content in this vessel change in a week?

Let’s use the summary equation of photosynthesis:
6СО2 + 6Н2О -> CgH12O6 + 6O2.
For a week, 0.25 mol of glucose is created, which means that 6 x 0.25 = 1.5 (mol O2) are released.
During this time (0.11 + 0.12) 0.23 mol of glucose is consumed and 6 • 0.23 = 1.38 mol 02 is consumed (we calculate the consumption of O2 according to the equation of glucose oxidation):
C6H1206 + 602 -> 6C02 + 6H20.
It turns out that 1.5 mol 02 is synthesized per week, and 1.38 mol is consumed. This means that 0.12 mol 02 per week remains in the vessel

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