Posted by Sarah on Tuesday, December 2, 2008 at 8:34pm.
I obtained 0.12088 which rounds to 0.121 (your answer) if we have only three significant figures; that is, if the mass of Pb is 27.3 g and not 27.30 and the mass of the water is 15.0 g and not 15.00
Your method is correct.
I did not check the arithmetic but my physics book says lead is .130 so I think you did it right.
Thank you both very much for your help and for responding as quickly as you did!
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