Consider 1.0L of a solution which is 0.70MNH4C and 0.80MNH3 C. C4 for NH4+=5.610+10 Part1 Cakculate the pH of this solution pH = Part 2 Calculate the pH after 0.10 mol of HCi has been added to the original buffer solution. Assume no volume change on addeion af HCi pH= Part 3 Caiculate the pH after 020 mol of NaOH has been added to the originat butfer solution. Assume no volume chamge on addhion of NaOH. pH=