Give reason for the following: Baso4 precipitate is washed with water containing a small amount of H2 SO4 in gravimetric analysis.
Give reason for the following:
Baso4 precipitate is washed with water containing a small amount of H2 SO4 in gravimetric analysis.
4 views
1 Answers
BaSO4 dissociates as : BaSO4 (s)- aq------> Ba2+(aq) + SO2 4 - (aq). Addition of H2SO4 gives common SO2 4 - ions dissociation of Ba SO4 and thus helps in the complete precipitation.
4 views
Answered