(c6h6) can be biodegraded by microorganism. if 30 mg of benzene is present, what amount of oxygen required for biodegradation, no new cells are formed?

36.92 mg of oxygen required for bio-degradation.

Explanation:

Mass of benzene = 30 mg = 0.03 g (1000 mg = 1 g )

Moles benzene =

According to reaction 5 moles of benzene reacts with 15 moles of oxygen gas.

Then 0.0003846 mol of benzene will react with:

of oxygen gas

Mass of 0.0011538 moles of oxygen gas:

0.0011538 mol × 32 g/mol = 0.03692 g = 36.92 mg

36.92 mg of oxygen required for bio-degradation.

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