question_answer 1)

  Arrange the following in increasing order of pH: \[KN{{O}_{3}}(aq),C{{H}_{3}}COONa(aq),N{{H}_{4}}Cl(aq),\]\[{{C}_{6}}{{H}_{5}}COON{{H}_{4}}(aq)\]

Answer:

  \[\underset{\left( \begin{smallmatrix}  Salt\,weak\,base \\  Strong\,acid\,Lowest  \\  pH \end{smallmatrix} \right)}{\mathop{N{{H}_{4}}Cl(aq)}}\,<{{C}_{6}}{{H}_{5}}COON{{H}_{4}}<KN{{O}_{3}}<\underset{\left( \begin{smallmatrix}  Salt\,of\,weak\,acid\, \\  Strong\,base\,Highest  \\  pH \end{smallmatrix} \right)}{\mathop{C{{H}_{3}}COONa}}\,\]