A sample of O 2 gas is collected over water at 23- C at a barometric pressure of 751 mm Hg vapour pressure of water at 23- C is 21 mm Hg - The partial pressure of O 2 gas in the sample collected isA- 21 mm HgB- 751 mm HgC- 1-02 atmD- 0-96 atm

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Byju's Answer

Standard X

Chemistry

Volume of Gases and Number of Moles

A sample of O...

Question

A sample of $O_{2}$ gas is collected over water at 23 $^{\circ}$ C at a barometric pressure of 751 mm Hg (vapour pressure of water at 23 $^{\circ}$ C is 21 mm Hg). The partial pressure of $O_{2}$ gas in the sample collected is____.

21 mm Hg

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751 mm Hg

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0.96 atm

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1.02 atm

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Solution

The correct option is C
0.96 atm

Pressure of $O_{2}$ (dry) = 751-21 = 730 mm Hg

$∴ P a r t i a l P r e s s u r e o f O_{2} = \frac{730}{760} = 0.96 a t m$

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A sample of $O_{2}$ gas is collected over water at $23^{\circ}$ C at a barometric pressure of 751 mm Hg (vapour pressure of water at $23^{\circ}$ C is 21 mm Hg). The partial pressure of $O_{2}$ gas in the sample collected is ......

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A sample of O2 gas is collected over water at 23∘C at a barometric pressure of 751 mm Hg (vapour pressure of water at 23∘ C is 21 mm Hg). The partial pressure of O2 gas in the sample collected is____.

The correct option is C 0.96 atm Pressure of O2 (dry) = 751-21 = 730 mm Hg ∴Partial Pressure of O2=730760=0.96 atm

A sample of $O_{2}$ gas is collected over water at 23 $^{\circ}$ C at a barometric pressure of 751 mm Hg (vapour pressure of water at 23 $^{\circ}$ C is 21 mm Hg). The partial pressure of $O_{2}$ gas in the sample collected is____.

The correct option is C
0.96 atm

Pressure of $O_{2}$ (dry) = 751-21 = 730 mm Hg

$∴ P a r t i a l P r e s s u r e o f O_{2} = \frac{730}{760} = 0.96 a t m$