2. A flask and stopper with a volume of 25.4ml weighing 15.8156g is used to perform this experiment. The conditions are P=768mm and T=99.5' C. The recondensed
vapor and the stoppered flask have a mass of 15.8793g. What is the MW of the
compound? Show all work.

Alidded glass container is filled with a colored gas. after a period of time, it is observed that the gas is uniformly spread throughout the box and that the movement has slowed considerably. next, a warm iron plate is carefully placed under the box. why is there resumed movement of the gas in the container?