Consider an F M solution of Fe2(SO4)3. Besides H+ and OH−, the known species are Fe3+, Fe(OH)2+, Fe(OH)2+, Fe2(OH)24+, FeSO4+, SO42−, and HSO4−.  a) Write the charge balance equation for this solution.

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Chapter1: Chemical Foundations
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Consider an F M solution of Fe2(SO4)3. Besides H+ and OH−, the known species are Fe3+, Fe(OH)2+, Fe(OH)2+, Fe2(OH)24+, FeSO4+, SO42−, and HSO4−. 

a) Write the charge balance equation for this solution. 

b) Which species must be an ion pair, and which comes from acid hydrolysis of Fe3+? Write the balanced acid hydrolysis reaction for the hexa-aquo complex of Fe3+ and report its pKa

c) Write two mass balance equations for this solution, one for total iron and one for total sulfate. [How do you think you should handle the species that includes two iron atoms?] Give numerical values for these equations in terms of F. 

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