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The density of ethylene glycol is 1.113 g/cm^3. How many ethylene glycol molecules are present in 1.00 gallons of ethylene glycol?
5 years ago

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DrBob222
Convert 1 gallon to L then to cc.
1.113 g/cc x # cc in the gallon = grams ethylene glycol.
mols ethylene glycol = grams/molar mass = ?
Then 1 mol contains 6.02E23 molecules. Use that to convert mols to # molecules.
Post your work if you get stuck.
5 years ago

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