science(chem)
posted by christina .
For an example of charge balance in my text it says
Write a charge balance eqzn for an aqueous sol that contains NaCl,
Ba(ClO_{4})_{2}, & Al_{2}(SO_{4})_{3}
The answer given is:
[Na+] + [H30+] + 2[Ba+] + 3[Al3+]= [ClO4] + [NO3] + 2[SO42] + [HSO4] + [OH]
I know that the rxns are:
NaCl=> Na+ + Cl
Ba(ClO4)2 => 2Ba^{2+} + 2ClO4
Al2(SO4)_{3} => 2Al3+ + 3SO4^{2}
SO4^{2} + H2O => H2SO4 + OH
The thing is I don't know how they get [NO3] from these being combined together
=/
Maybe I forgot an rxn? b/c the rxn's aren't shown, just the answer...
2H2O => H3O+ + OH
The answer book goofed. NO3^ doesn't belong and Cl^ has been omitted. I suspect the original salt was NaNO3 and not NaCl. I think the answer then would be ok.
Thanks Dr.Bob, I was wondering where they got the NO3 from
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