One of two identical balloons contained carbon dioxide (CO2, 44 g mol−1) and the other contained hydrogen (H2, 2.0 g mol−1). If it took 24 hours for all of the H2 to escape from its balloon, how long did it take for all of the CO2 to escape?
Use Graham's Law:
Since molar mass and time is given, we will use the second half of the formula.
Since there are only 2 significant figures the answer would be