1. Place 5 cm3 5% (w/w) silver nitrate solution in a text tube and add a small amount of dilute sodium hydroxide (four or five drops of 0.4 mol dm-3) and shake gently.
2. Add 1M ammonium hydroxide dropwise, with gentle shaking, until the precipitate just dissolves.
2. Add 1M ammonium hydroxide dropwise, with gentle shaking, until the precipitate just dissolves.
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