Exactly 100mL of oxygen is collected over water of 23- C and 800 mm pressure- Calculate the volume of dry oxygen at NTP- Vapour pressure of water at 23- C is 21 mm-

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 ......

50

c m^{3}

of hydrogen is collected over water at

17^{o}

C and

750

mm Hg pressure. Calculate the volume of dry gas at S.T.P.

[The water vapour pressure at

17^{o}

C is

14

mm Hg.]

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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$V_{1} = 100 m L$	$V_{2} = ?$
$P_{1} = 779 m m$	$P_{2} = 760 m m$
$T_{1} = 23^{\circ} C = 23 + 273$	$T_{2} = 293 K$
$= 296 K$

Exactly 100mL of oxygen is collected over water of 23∘C and 800 mm pressure. Calculate the volume of dry oxygen at NTP. (Vapour pressure of water at 23∘C is 21 mm.)

The correct option is A V=94.54mLV1=100mLV2=?P1=779mmP2=760mmT1=23∘C=23+273 T2=293K =296KP1V1T1=P2V2T2V2=P1V1T2P2T1=779×100×273760×296=94.54mL

Exactly 100mL of oxygen is collected over water of $23^{\circ} C$ and 800 mm pressure. Calculate the volume of dry oxygen at NTP. (Vapour pressure of water at $23^{\circ} C$ is 21 mm.)