Description of experiment
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Needed compounds:
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disodium hydrogen arsenate heptahydrate : Na2HAsO4.7H2O
silver nitrate : AgNO3
Class:
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elem=As,Ag
precipitation
Summary:
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Silver(I) ion gives a chocolate brown precipitate with arsenate.
Description:
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Add a solution of silver nitrate to a solution of Na2HAsO4.7H2O: A chocolate
brown precipitate is formed. This precipitate most likely is Ag3AsO4.