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Molecular Complex compound Total ions per formula Free chloride ions per composition unit formula unit CoCl2 4H20 A O CoCl2 5H20 B 1 2 CoCl2 6H20 C 2...
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Question

When CoCl2 was reacted with H2O, three complex compounds were formed with coordination number of 6. The following experimental data were obtained for these compounds.

 

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  1. Find the chemical formulas of the complex compounds A, B, and C, with clear explanation for your deduction ( no points for answers without explanation).
  2. What is the oxidation number of Cobalt in the compounds?

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Molecular
Complex compound
Total ions per formula Free chloride ions per
composition
unit
formula unit
CoCl2 4H20
A
O
CoCl2 5H20
B
1
2
CoCl2 6H20
C
2
3

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Subject: Chemistry, Science

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