Beaker

Got into work yesterday and this little guy followed me to my desk. I scooped him up into a beaker so I could try and figure out what sort of spider he was, as he doesn't look like any of the more familiar sorts. I live in south-east Michigan, so I first checked for the ...

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... seen this. This is nonsense. The FACT is, if your stomach acid is diluted by food or drink, IT JUST MAKES MORE. Your stomach is not a passive beaker in chemistry class - it is a living organ and it adjusts to its environment.

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... nucleation site increase, the crystal(s) get larger, eventually getting large enough to make those pretty crystals you see in your petri dish or beaker or whatever. There are a number of textbooks around; most will probably not be all that interesting to you because they will go into the gory ...

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Hmmm, well now I have a question: Where did the potassium come from? In the question, the bag was filled with glucose and iodine, and the beaker had water and starch- making no mention of potassium. And why would the water become purple?

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... the glucose side of the bag appears to be the lower solute concentrated side. The aqueous KI solution would therfore leave the bag out into the beaker. The KI will react with the amylose in the starch and the liquid in the beaker should turn purple. Helpful link: http://highered.mcgraw-hill.com/sites/0072495855/student_view0/chapter2/animation__how_osmosis_works.html

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