What is the number of moles of gas contained in a 3.0L container at 3.00x102K with a pressure of 1.5 atm?

In the millikan oil drop experiment they determined that every drop had a charge which was a while number multiple of -1.60x10^-19. if a drop has a total charge of -9.60x10^-19 then how many excess electrons are contained within the drop?

Displacement is the slope of a velocity vs. time graph a. true b. false

How many molecules are in 6.0 moles of methane