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Chemistry Help-How many atoms of tin does the fitting contain?
Bronze is a copper and tin alloy. A particular bronze sample contains 37.8% tin by mass and has a density of 8.71 gcm3. A fitting composed of this bronze alloy has a total volume of 160.4 cm3.
How many atoms of tin does the fitting contain?
1 Answer
- Jay AbyLv 57 years ago
mass of bronze = 160.4 cm3 * 8.71 g / cm3 = 1397.084 g
mass of tin = 37.8/100 * 1397.084 = 528.1 g
moles of tin = 528.1 g * 1 mol/118.7 g = 4.45 moles
atoms of tin = 4.45 moles * 6.02*10^23 atoms/mole = 2.679*10^24 atoms
