we did pracs on CnM even though we haven't started the topic but thank goodness for tutoring or else i would be sooo completely lost. i didn't get to test for the conc of ions in heavy metal water ):
but we did cool titrations using a metal indicator (i never knew they existed) and it turned a really pretty light pink, then purple, then i overshot it to blue ==
and then there was this other titration, i screwed that as well because i used the pipette filler wrong and it apparently contaminates the solution, but whatever, it was fun.
we also looked at the machines and also when the flame changes colour when metals are passed through. such nice pretty colours unlike our dodgy flame tests using a Bunsen at school...
a guy asked is we were doing any of the pracs at school and the teachers said a straight "no" because they were all toooooooooooooo expensive. it's because of the materials we used and it was the actual proper method to test for the stuff in the water.
so that explained the $30.
a face palming moment: when i put in two magnetic stirrers and it stirred slower than a stirring rod.
and nsw art gallery was uneventful. i've been so many times but never actually walked around the whole thing. a broken statue and ladders put together are considered art nowadays. we just looked at two paintings for chem-waste of time.
i walked so much today.
ahh physics. so screwed. and maths topic test, i'm just gonna wing it (literally, i haven't touched any maths since Friday D= )
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