4: The mass amount of protons and neutrons in an atom
We just covered this in my chem class
NH3. Ammonia is composed of one nitrogen atom, and three hydrogens.
The equation is x/25=3.2
*25 *25
-------------
x=80g
The unethical part about the mice's treatment is that John's classmates are taping on the glass and teasing the mice.
Henry law:
P = KC
P = solvent vapour pressure
K = Henry constant
C = conc of solute
So, 0.2 = 773 C
so, C = 0.2 / 773 = 2.5 x 10^{-4} molal