Plz i need hlp . to 225 of a 0.80m solution of kl a student adds enough water to make 1.0l of a more dilute kl solution. what is the morality of the new solution?

Asample of the male sex hormone testosterone, c19h28o2, contains 3.88×10^21 atoms of hydrogen.(a) how many atoms of carbon does it contain? (b) how many molecules of testosterone does it contain? (c) how many moles of testosterone does it contain? (d) what is the mass of this sample in grams?

How can one make a supersaturated solution? (apex)

If i add water to oil what will happen