Please help Formula: V =n/M, M= n/V or n= (M)(V)
Calculate the amount of moles necessary to make a 1500 mL of 0.050 M soln of copper (II) sulfate? CuSO4

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?