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The water level in a graduated cylinder initially at 210 mL rises to 282 mL after a piece of lead is submerged. What is the mass in grams of the lead?

it is chem i  need help

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J.R. S. | Ph.D. in Biochemistry--University Professor--Chemistry TutorPh.D. in Biochemistry--University Profes...
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To answer this, one needs to know the density of lead.
Change in volume = 282 ml - 210 ml = 72 mls
Assuming a density of 11.34 g/ml the mass of the lead would be
72 mls x 11.34 g/ml = 816.5 grams