In order to
calculate the amount (grams) of a compound to use in a solution you need to
know the concentration (mole/L), the volume (V), and the molar mass (g/mole) of
the compound. Remember that Molarity x Volume
Let’s say you
want to make a 100 ml of a 200M solution of CuSO4.5H2O. The molar mass(MM) is 249.68 g/mol. How many grams of copper sulfate pentahydrate
do you need to measure out?
x V x MM = grams 200 moles/liters * 100 ml * 269.98 grams/moles = 533 grms
May 28th, 2015
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