If two atoms** have the same number of protons, they are the same element. They have the same atomic number. The only thing that would change with the number of neutrons is the mass number.
Use number of mole=mass (in grams) divided by molar mass
AKA n=m/Mr
->Using the mass (4.78g) given to you until he question. Then put the number of mole in pV=nRT but rearrange to
p=nRT divided by volume (V).
AKA p=nRT/V
Also don't forget to convert your temperature to Kelvins (add 273 to your temperature)
The Arrhenius definition of acid-base reactions, which was devised by Svante Arrhenius, is a development of the hydrogen theory of acids. ... An Arrhenius base is a substance that dissociates in water to form hydroxide (OH -) ions. In other words, a base increases the concentration of OH - ions in an aqueous solution.
