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Writing equations for weak acids/bases

Posted: Wed Jan 23, 2019 9:33 pm
by Samantha Man 1L
Is it acceptable to write the short-handed versions of weak acid and weak base equations where HA-->(H+)+(A-) and B+H2O-->(HB+)+(OH-), respectively, or should we always write out the full equation and include all spectator ions?

Re: Writing equations for weak acids/bases

Posted: Wed Jan 23, 2019 9:37 pm
by Sam Joslyn 1G
I don't think we need to include spectator ions. I believe that the format in which you wrote them would be totally acceptable as long as you get he message across and it's clear what you're talking about!

Re: Writing equations for weak acids/bases

Posted: Wed Jan 23, 2019 9:38 pm
by Angela Grant 1D
We can disregard spectator ions when writing out equations with salts, but I think you should write out the entire equation for other scenarios to make sure you're noting the correct Kb / Ka values that correspond

Re: Writing equations for weak acids/bases

Posted: Wed Jan 23, 2019 9:40 pm
by paytonm1H
I would also caution to make sure your stoichiometric coefficients are correct when writing shorthand version of weak reactions.