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Air contains 79% N^(2) and 21% O(2) by v...

Air contains 79% `N^(2)` and 21% `O_(2)` by volume. If the barometric pressure is 750 mm Hg, then partial pressure of oxygen is

A

157.7 mm Hg

B

175.5 mm Hg

C

315.0 mm Hg

D

none of the above

Text Solution

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The correct Answer is:
A
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