Posted by T on Thursday, March 25, 2010 at 4:34am.
M = moles/L
0.1 = moles/0.250 L
solve for moles.
moles = grams/molar mass
You know moles and molar mass, solve for grams (100% pure) AgNO3.
grams impure AgNO3 x 0.988 = grams pure AgNO3 you want or rearrange to
grams pure AgNO3/0.988 = grams you must weigh out to get grams AgNO3 you need.
the answer in the book was 4.3 grams
but if you do that you get
169.8731/0.988 which is 171.94 g
i don't get it
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