I am having troubl with this problem, can anyone help?
Calculate the pH after .020 mol HCL is added to 1.0 liter of .100 M propanoic acid (HC3H5O2) Ka 1.3E-5
also calculate the pH after the HCL has been added to a mixture containing .100 M HC3H5O2 and .100 M NaC3H5O2