5.25 g of an unknown molecular compound are dissolved in 100.0 mL of water. The resulting solution boils at 100.8oC. What is the molar mass of the unknown compound?

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?

If a solution had a ph of 7 what is the solution

Hey guys so i need to know what is _nh3+> nh4oh ~chemistry~