How many moles are in 18.6 L of potassium sulfate (K2SO4)? (0.83 moles)

After cloud droplets form, what must happen to them for precipitation to occur?

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?

Is a chemical message sent by another individual.