25cm<sup>3</sup> of a mixture of nobel gases ...
25cm<sup>3</sup> of a mixture of nobel gases was obtained from air after the removal of other constituents. What was the original volume of air
2,500 cm3
1250 cm3
125 cm3
80 cm3
Correct answer is A
Percentage of noble gases in air is 1%
25 = (1/100) * T
∴ T = 25 * 100 = 2500 cm3
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