Is time enough for the flight transfer at Beijing Capital Airport within 2 hours?

Hi

I have a flight with Aeroflot from Beijing to Moscow at 11:50, the 10th January (terminal 2). The same day I will travel from Changchun to Beijing also by plan. The flight will arrive at 9:40 to the same terminal (2). I would like to know if I will have time enough to make the check-in and take the secund flight.
Thank you!