i am doing a botany experiment involving silver thiosulphate solution. i have made the solution as per advised with 2.5 grams of silver nitrate. made up separately and 5 grams of sodiumthiosulphate. made separately. both were disolved into 2 x 500 mills of distilled water. once disolved they were mixed together while stirring briskly. when the solution had cleared there was a fair amount of black sediment suspended in the bottom of the solution. is this normal and has it mixed correctly or have i erred with something. the solution is supposed to stain skin brown.permanently. it does not do so..as you can see, i'm no chemist. just an keen amateur botanist. one last point, both the ingredients were both pure as . thank you.
2007-02-08
00:00:39
·
1 answers
·
asked by
JAMES M
1
in
Chemistry