Complete the table below by deciding whether a precipitate forms when aqueous solutions A and B are mixed. If a precipitate will form, enter Its empirical formula in the last column. Does a precipitate form when A and B empirical formula of solution A solution B precipitate are mixed? ammonium bromide potassium chloride O yes O no potassium sulfide copper(II) bromide O yes O no silver nitrate sodium sulfide O yes O no
Complete the table below by deciding whether a precipitate forms when aqueous solutions A and B are mixed. If a precipitate will form, enter Its empirical formula in the last column. Does a precipitate form when A and B empirical formula of solution A solution B precipitate are mixed? ammonium bromide potassium chloride O yes O no potassium sulfide copper(II) bromide O yes O no silver nitrate sodium sulfide O yes O no
Introductory Chemistry: A Foundation
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Chapter15: Solutions
Section: Chapter Questions
Problem 68QAP: 68. Aluminum ion may be precipitated from aqueous solution by addition of hydroxide ion, forming...
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Transcribed Image Text:O SIMPLE REACTIONS
Predicting precipitation
Complete the table below by deciding whether a precipitate forms when aqueous solutions A and B are mixed. If a precipitate will form, enter
its empirical formula in the last column.
Does a
precipitate form
when A and B
are mixed?
empirical
formula of
precipitate
solution A
solution B
ammonium bromide
potassium chloride
O yes O no
potassium sulfide
copper(II) bromide
O yes O no
silver nitrate
sodium sulfide
O yes O no
II
Expert Solution
Step 1
After mixing aqueous solutions of two electrolytes , precipitation takes place if one of the product formed is insoluble in water .
To decide solubility of a salt , solubility rules are used.
Some important solubility rules are
- All ammonium salts are soluble
- All sulfide salts are insoluble ( except sulfides of Na , K , NH4+ , Mg , Ca , Ba and Sr which are soluble )
- All Chlorides , bromides and iodides are soluble ( except with silver , mercury and lead )
- All nitrates are soluble
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