80.0 liters of oxygen gas is collected over water at 50 degrees celcius. the atomsphereic pressure in the room is 96.00 kPA. what is the partial pressure of oxygen?

Question

anonymous · Answer

daltons law

anonymous · Answer

daltons law means?

anonymous · Answer

total pressure is all the pressures added up

anonymous · Answer

1/2O2 +H2------------------->H2O
80 litres
 ok now first u convert temperature into kelvin and pressure into atm

anonymous · Answer

i am not sure but this could be an approach:
assuming ideal behaviour of oxygen 
usin PV=nRT

there for n u can use the relation 
n=given mass/molar mass
given mass=density*volume

 Oxygen Density is 1.429 g/L

find n 
then find p of oxygen gas then as u guys say when can say that is the partial pressure exerted by oxygen in a mixture wud contribute to
 absolute pressure=partial pressure
absolute pressure=pressure of gas-atmospheric pressure
find it

anonymous · Answer

i agree wid u evn i done half part but i m just lacking how to cal partial pressure of oxygen from the whole system..
and here if u ll take partial presure it will be of all system not only oxygen @salini

anonymous · Answer

absolute pressure is pressure of gas with respect to atmospheric pressure
RELATIVE PRESSURE

anonymous · Answer

i agree but here they are asking for oxygen not Kc ok

anonymous · Answer

that was just my idea i dunno to which extent it is correct
but with the given data this method looked most suitable:)

anonymous · Answer

its.....so simple just use the ideal gas equation PV=NRT