A solution has 3 mol of sodium dissolved into 500mL of solution. What is the molarity of the solution?

Which solution is an example of a nonelectrolyte? a. iodine in hexane b. sodium nitrate in waterc. acetic acid in waterd. hydrogen chloride in water

According to coulomb's law, how would the electrical force between particles change if the product of their electrical charge increased?

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?