know a website that can help me answer questions on aqueous solutions and pH?

Question

eg. determine the hydronium and hydroxide ion concentrations in a solution that is 1 x 10^-4M HCl

unless you can help me out
...but uh could you try using small words (;
thanks

eg2. the pH of a solution is determined to be 5.0. What is the hydronium ion[H3O+] and hydroxide ion [OH-] concentration of this solution?

Answer 1

1.) Since HCl is a strong acid, it dissociates completely into its ions, H3O+ and Cl-. Because it dissociates completely, the concentration of H3O+ is just equal to the concentration of HCl which is 1 x 10^-4 M. The relationship between [H3O+] and [OH-] is given by

Kw = [H3O+][OH-]
Kw = 1.0 x 10^-14

Therefore, [OH-] = 1 x 10^-10 M.

2). pH of the solution is related to the [H3O+] through the equation

pH = -log[H3O+]
[H3O+] = 10^-pH or antilog (-pH)

Therefore, [H3O+] = 1 x 10-5 M and [OH-] = 1 x 10-9 M

Answer 2

a million. in aqueous answer, CaCl2 would be ionozed to Ca+2 and cl-2 (with expenditures +2 and -2 respecyively) this ionozation is responcible for value flow throughout the answer (conduction of electrical energy) 2. Cl-2 = 0 HClO = +a million HCl = -a million if u have a doubt with regard to the calculation of oxidation states, touch me: [e-mail]

Answer 3

1) [H3O+] = 10^-4 M

[OH-] = 10^-10 M

2) [H3O+] = 10^-5 M

[OH-] = 10^-9 M