How many moles of carbon dioxide gas are present if 5 L of CO2 was collected at atmospheric pressure (101.325 kPa) and 25ºC?

Question

anonymous · Answer

You have to do some conversion, first do you know the SI unit needed to carry out the 
PV= nRT formula??

somy · Answer

use ideal gas law
PV=nRT
R is constant= 8.31 
P= 101.325 Pa
V= 5 L (convert to m3) (1m3 is 1000 L) = 0.005 m3
T= 25 Celsius (convert to Kelvin by adding 273 to celsius reading) = 298 K
n(is mole)= ?
nRT=PV
n= (PV)/(RT)
so just substitute and you'll get the answer

anonymous · Answer

Oh Somy.....-_-

somy · Answer

@KL-RC lol my bad i didn't see that coming lmao

anonymous · Answer

thank you Somy.. and also im not good with asking question how far i know something... and also your way Somy was alright i dont care if you give me the answer but i like how it understandaple. aligato

somy · Answer

@ecah1 heh you are welcome) it's not like i gave you the answer) take it as 'a way' you are supposed to do this kind of questions) First thinking of formula then making sure your units are appropriate
if you can do this much then i'm sure you will be able to do such questions) 
If there is something you don't get, feel free to ask) i'll make it as easy and clear as i can :D

anonymous · Answer

absolutely.. and your cool :D

somy · Answer

@ecah1 :D