mass chem

# mass chem - CH3COOH Calculate the mass percent of each...

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Finding the mass percent from chemical formulae This is the chemical formula for lead nitrate: Pb(NO3)2 Calculate the percent of each element in lead nitrate. Round your percentages to one decimal place. element moles Pb 1 mol N 2 mol O 6 mol NEXT element moles mass Pb 1 mol 1 mol X 207.2 g per mol = 207.2g N 2 mol 2 mol X 14.007 g per mol = 28.014 O 6 mol 6 mol X 15.999 g per mol = 95.994 Next…add the masses of all the elements to find the total mass of one mole of lead nitrate. 207.2+28.014+95.994= 331.208g This is the chemical formula for acetic acid:

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Unformatted text preview: CH3COOH Calculate the mass percent of each element in acetic acid. Round your percentages to 1 decimal place. _Solution element moles C 2 mol H 4 mol O 2 mol element moles mass C 2 mol 2 mol X12.011g per mol = 24.022g N 2 mol 4 mol X 1.0079 g per mol = 4.0316 O 6 mol 2 mol X 15.999 g per mol = 31.998 Now add the masses of all the elements to find the total mass of 1 mole of acetic acid element moles mass C H O total mass:...
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mass chem - CH3COOH Calculate the mass percent of each...

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