What is the partial pressure of water vapor in oxygen gas collected by water displacement at 10°C and 750 mm Hg?

1 Answer
Mar 10, 2017

Answer:

You want the saturated vapour pressure, #P_"SVP"#.

Explanation:

This is a function of temperature only, and at #283*K# this site reports that the vapour pressure of water, #P_"SVP"#, is #9.2*mm*Hg#.

And so, #P_"Measured"=P_"gas"+P_"SVP"#,

#P_"Gas"=P_"Measured"-P_"SVP"#

#750*mm*Hg-9.2*mm*Hg=741.8*mm*Hg# #=# #??*atm#