A scientist is investigating the solubility of two polyatomic ions, oxalate (C₂02) and arsenate (ASO), which are not listed in

Question

A scientist is investigating the solubility of two polyatomic ions, oxalate (C₂02) and arsenate (ASO), which are not listed in
the table of solubility guidelines.
The scientist starts with four solutions made of water-soluble salts. Solution A contains sodium arsenate. Solution B contains
ammonium oxalate. Soution C contains silver chlorate. Solution D contains aluminum bromide.
Solute
Color of Solution
Na, AsO4
colorless
(NH,),C,O.
colorless
colorless
AgCIO,
AlBr
yellow
The results of mixing each solution in pairs are shown in the table.
Experiment Solutions Mixed
1
A + B
2
A+C
3
A+D
B+C
B+D
C+D
Solution
A
B
C
D
4
5
6
Identify the formula for each precipitate that forms.
precipitate from A+C:
precipitate from B+C:
2
Incorrect
precipitate from C+D:
4
Incorrect
6
Result
no precipitate, colorless solution
brown precipitate
white precipitate
white precipitate
white precipitate
yellow precipitate
Incorrect
precipitate from A+D:
precipitate from B+D:
3
Incorrect
15
Incorrect

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