What volume of water vapour(gas) measured at 22.0 torr and 25°C contains the same number of molecules as 15.0 mL of ice if the density of ice is 0.917 g/mL?

1 Answer
anor277
Apr 9, 2018

And so (i) we work out the number of water molecules in the ICE sample...and (ii) we get approx. #650*L#...

Explanation:

#"number of molecules"_"ice"=(15.0*mLxx0.922*g*mL^-1)/(18.01*g*mol^-1)xx6.022xx10^23*mol^-1=4.62xx10^23*"molecules"-=0.768*mol#
And (ii) we use the ideal gas equation and solve for #V=(nRT)/P#

#=(0.768*molxx00821*(L*atm)/(K*mol)xx298*K)/((22*"Torr")/(760*"Torr"*atm^-1))=??*L#

Related questions
Impact of this question
436 views around the world
You can reuse this answer
Creative Commons License