# After 0.600 L of #Ar# at 1.40 atm and 210 #"^o#C is mixed with 0.200L of #O_2# at 398 torr and 120 #"^o#C in a 400 -mL flask at 29 #"^o#C, what is the pressure in the flask?

##### 1 Answer

Jul 2, 2018

Well, FIRST off we calculate the molar quantities of each gas...by means of the Ideal Gas equation...

#### Explanation:

And now we ADD these molar quantities, and calculate the pressure expressed under the NEW given conditions...

I make this approx.