Calculate the vapour pressure over a solution containing 11.7grams of benzene and 1.12×10^-4 for methyl benzene

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?

The chemical bond connecting one nucleotide with the next one along the nucleic acid chain is called a

How do dying stars contribute to the formation of planets