Calculate the `pH` of the solutions when following conditions are provided:   a. `20mL`
Channel: Doubtnut
Date: 2020-07-12

Calculate the `pH` of the solutions when following conditions are provided:   a. `20mL` of `M//10 CH_(3)COOH` solution is titrated with `M//10` solution of `NaOH`.  i. No titration is carried out.  ii. When `10mL` of `NaOH` is added.  iii. When `20mL` of `NaOH` is added.  iv. When `30mL` of `NaOH` is added. `(pK_(a)` of `CH_(3) COOH = 4.74)`  b. `20mL` of `M//10 NaOH` solutions sio titrated with `M//10` solution of `CH_(3)COOH`.  i. No titration is carried out.  ii. When `18mL` of `Ch_(3)COOH` is added.  iii. When `20mL` of `CH_(3)COOH` is added.  iv. When `40mL` of `CH_(3)COOH` is added.  c. `10mL` of `M//10 NH_(4)OH` solution is titrated with `M//10` solution of `H_(2)SO_(4)`.  i. No titration is carried out.  ii. When `4mL` of `H_(2)SO_(4)` is added.  iii. When `5mL` of `H_(2)SO_(4)` is added.  iv. When `10mL` of `H_(2)So_(4)` is added. `pK_(a)` of `NH_(4)OH = 4.76`  d. `10mL` of `M//10H_(2)SO_(4)` solution is titrated with `M//10` solution of `NH_(4)OH`.  i. No titration is carried out.  ii. When `10mL` of `NH_(4)OH` is added.  iii. When `20mL` of `NH_(4)OH` is added.  When `40mL` of `NH_(4)OH` is added.