A few weeks ago, the senior two students completed their final laboratory session before the second term exams. For the more scientifically knowledgeable among us, the assignment was to complete a acid-base titration to determine the concentration of the Sodium Hydroxide using a known concentration of Salicylic Acid.
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| Teaching how to use a Pipette bulb to transport NaOH |
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| Trying it out for themselves! |
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| Pouring and measuring Salicylic Acid |
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| Add the indicator. Pink shows it is a base. |
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Adding the acid. The indicator will turn clear once the solution is acidic.
At that point, the students measure how much acid they added to determine the concentration of the base. |
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| Final results from each group! |
-Kristin
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