In chemistry, we're learning about solutions. In a lab last week we made solutions of some liquids and solids. We calculated exactly how many grams of cobalt chloride we should add to a solution of water. After dissolving it in water, we took it to a spectrometer where we measured how much light it absorbed to determine how accurate our measurements were. Our group turned out to be off in the first measurement, but right-on in the second solution measurement of potassium permanganate.
It goes to show how much accuracy can affect science!
Thursday, January 21, 2010
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