Archive of ‘Chem 11’ category

Titration Lab

Titration

Thinking- Critical Thinking

Thinking critically was very important in this lab to understand the processes going on and learn to interpret what I am seeing and doing. During our test lab, our titration turned out very bright pink, and although it was not part of the procedure, my partner and I used problem solving to figure out what to do to turn it back to a clear solution. Our strategy for solving this problem was something like trial and error or guessing. We were curious what would happen if we put more HCl into our solution, what would happen to the colour? What would happen to the concentration? How much more NaOH would we need to add to create our light pink colour again? We added some more HCl and drew our conclusion that the solution became colourless again and we needed to add much more NaOH than we thought to return it to the proper colour. Next time I think that I would have tried to experiment more while I had the opportunity in the trial titration, to stray farther from the procedure to see what I could do with what I was given.