Percentage of oxygen in the air is 21%
Given that;
Volume of air sample = 250 ml
Volume of O2 in sample = 52.5 ml
Find:
Percentage of oxygen in the air
Computation:
Percentage of oxygen in the air = [Volume of O2 in sample / Volume of air sample] × 100
Percentage of oxygen in the air = [52.5 / 250] × 100
Percentage of oxygen in the air = 21%
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