Acid Base Titrations that lead to another question...

The lesson was about neutralization via an acid/base titration.

In a titration, all of the acid and base are consumed (at the equivalence point) yielding a salt and water. [Thus the reason for writing A/B equations as acid + base --> salt + water]

An interesting aspect fromt these questions is what kind of salt is produced. Is it neutral, acidic or basic?

If the salt is acidic or basic, then what is the pH of the resulting solution.

If the pH of the resulting solution is known, then what is a suitable indicator to use to find the equivalence point of the neutralization (via titration)?

A few questions were left to complete.
For each of the following, determine
(i) the conc of the acid
(ii) the pH at the equivalence point
(iii) a suitable indicator (name, explain why it was selected, expected colour?)
(a) 13.72mL of acetic acid is completely neutralized by 25.00mL of 0.100M NaOH.
(b) 25.00mL of 0.150M NaOH is titrated with 21.44mL of HCl
(c) 8.68mL of HCl completely neutralizes 10.00mL of 0.0750M NH3

The solutions to these questions will posted on moodle within the next 2 hours.
[provided technical issues do not get in the way.]

The solutions to the pH of titration questions (outlined above and in class) are posted on moodle.
{I still need to work on 'sizing' the document...something for another day I suppose.}

I am testing out a new to me moodle feature - post a question forum...currently it is the last item in A/B llbm unit list

A few 'jokes'(?). Ready or not.... Why are gold fish orange? [The water makes them rusty.]  Who held the baby octopus to ransome? [Squidnappers.]  What part of a fish weighs the most?  [It's scales.]