Which of the following correctly explains why the vapor pressure of water has to be included in the calculations?Some of the liquid water evaporates into the gas, and increases the total pressure generated by the trapped gas.As the H2(g) is bubbled up the reaction solution, some of the H2(g) molecules are solubilized by water in the aqueous solution, effectively decreasing the measured pressure above.The pressure contributed by the H2(g) is greater than the measured total pressure because of the contribution of partial pressure of water vapor.The pressure exerted by the evolved H2(g) is reduced because of the co-presence of water vapor, thus Pwater vapor has to be added to Pdry gas. Overview of the experiment: Recap of the ExperimentRecord Volume of thePlace 10.0Cover theenclosed gas, theheight differenceInsert foldedmL of 6.0 Mmouth of theMg ribbon(approx.0.02-0.03 g)Add waterHCI into aeudiometer withto fillbetween the waterfinger and invertinto a glass thatis 2/3 filled w/eudiometereudiometerlevels inside andpartially filledw/ distilledto the brim.into theoutside the eudiometer,eudiometer.and the temperature ofwater.water.the water outside.

In calculation we should have to subtract the vapour pressure of water from measured total pressure.…

Answered: vapor pressure of water

Science

Biochemistry

vapor pressure of water

Principles Of Pharmacology Med Assist

6th Edition

ISBN:9781337512442

Author:RICE

Publisher:RICE

Chapter1: Numerals And Fractions

Section: Chapter Questions

Problem 6RP

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Question

Which of the following correctly explains why the vapor pressure of water has to be included in the calculations?

Some of the liquid water evaporates into the gas, and increases the total pressure generated by the trapped gas.
As the H₂(g) is bubbled up the reaction solution, some of the H₂(g) molecules are solubilized by water in the aqueous solution, effectively decreasing the measured pressure above.
The pressure contributed by the H₂(g) is greater than the measured total pressure because of the contribution of partial pressure of water vapor.
The pressure exerted by the evolved H₂(g) is reduced because of the co-presence of water vapor, thus P_{water vapor} has to be added to P_{dry gas}.

Overview of the experiment:

Recap of the Experiment
Record Volume of the
Place 10.0
Cover the
enclosed gas, the
height difference
Insert folded
mL of 6.0 M
mouth of the
Mg ribbon
(approx.
0.02-0.03 g)
Add water
HCI into a
eudiometer with
to fill
between the water
finger and invert
into a glass that
is 2/3 filled w/
eudiometer
eudiometer
levels inside and
partially filled
w/ distilled
to the brim.
into the
outside the eudiometer,
eudiometer.
and the temperature of
water.
water.
the water outside.

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