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17 Nov 2019
1/ How many atoms are present in a 75.0 âcm3 sample of plumber's solder, a leadâtin alloy containing 67% Pb by mass and having a density of 9.4 g/cm3?
Express your answer using two significant figures.
2/ How many Cu atoms are present in a piece of sterlingsilver jewelry weighing 33.74 g ? (Sterling silver is a silverâcopper alloy containing 92.5% Ag by mass.)
Express your answer using two significant figures.
1/ How many atoms are present in a 75.0 âcm3 sample of plumber's solder, a leadâtin alloy containing 67% Pb by mass and having a density of 9.4 g/cm3?
Express your answer using two significant figures.
2/ How many Cu atoms are present in a piece of sterlingsilver jewelry weighing 33.74 g ? (Sterling silver is a silverâcopper alloy containing 92.5% Ag by mass.)
Express your answer using two significant figures.
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iconhub2023Lv3
8 Mar 2023
Lelia LubowitzLv2
17 Jan 2019
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