b. (i) A green solid has the empirical formula FeBr3-5NH3 H₂O. Upon reaction with an excess of aqueous AgNO3 it is found that 1 mole of the solid precipitates 3 moles of AgBr. Heating the green solid leads to loss of 1 mole of H2O to yield a blue solid with the same ratio of Fe:Br:NH3 as found in the green solid. The reaction of 1 mole of the blue solid with excess of aqueous AgNO3 produces 2 moles of AgBr. Draw and name the octahedral green and blue complexes. [2 marks]

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Chapter1: Chemical Foundations
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b. (i)
A green solid has the empirical formula FeBr3-5NH3 H₂O. Upon reaction with
an excess of aqueous AgNO3 it is found that 1 mole of the solid precipitates 3
moles of AgBr. Heating the green solid leads to loss of 1 mole of H2O to yield
a blue solid with the same ratio of Fe:Br:NH3 as found in the green solid.
The reaction of 1 mole of the blue solid with excess of aqueous AgNO3
produces 2 moles of AgBr. Draw and name the octahedral green and blue
complexes.
[2 marks]
Transcribed Image Text:b. (i) A green solid has the empirical formula FeBr3-5NH3 H₂O. Upon reaction with an excess of aqueous AgNO3 it is found that 1 mole of the solid precipitates 3 moles of AgBr. Heating the green solid leads to loss of 1 mole of H2O to yield a blue solid with the same ratio of Fe:Br:NH3 as found in the green solid. The reaction of 1 mole of the blue solid with excess of aqueous AgNO3 produces 2 moles of AgBr. Draw and name the octahedral green and blue complexes. [2 marks]
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