Description of experiment
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Needed compounds:
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sulphuric acid : H2SO4
sodium nitrite : NaNO2
silver nitrate : AgNO3
Class:
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elem=Ag,N
precipitation
Summary:
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Silver nitrite is only sparingly soluble in water. When dilute acid is
added, the compound is destroyed again.
Description:
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Add a solution of silver nitrate to a solution of sodium nitrite: Formation
of a dirty white (very pale yellow) precipitate.
Add some dilute sulphuric acid (appr. 1 mol/l): The precipitate dissolves.