A sample of 0.0020 mole of HCL is dissolved in water to make a2000-mL solution. Compute the molarity of the HCL solution, the [H3O+], and the PH. For a strong acid such as HCL, the [H3O+] is the same as the molarity of the HCL solutions.
HCl + H2O - - > H3O+ + Cl-