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Qube
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Homework Statement
Question: is the charge sum an approximation?
Homework Equations
E.g. consider 0.10 M [itex]Na_{2}SO_{4}[/itex] solution.
Charge sum appears to be 0.20 from elementary stoichiometric considerations.
The Attempt at a Solution
The charge sum, however, seems to be ignoring the auto-ionization of water, which forms two ions - hydronium and hydroxide. Am I correct? This doesn't make a significant difference for most solution considerations, right?