1.

Calculate the resultant pH of a solution when 20 mL 0.1 N NaOH is mixed with 20 mL of 0.05 M Ca(OH)_(2) " at " 25^(@)C

Answer»

Solution :(i) CALCULATION of NET `H^(+)` ion concentration in the mixture
(ii) calculation ofthe total NUMBER of `OH^(-)` ions generated from the given volume of NAOH and `Ca(OH)_(2)`
(iii) calculation of concentrationof `OH^(-)` ions in the RESULTANT solution
(iv) calculation of pOH
(v) calculation of pH from the value of pOH at `25^(@)C`
(vi) 3


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