Well it's CHCl3 to be exact, lowercase L.
So you've got 1 C, 1 H, and 3 Cl's.
Carbon weighs 12.011 g/mol. Hydrogen is 1.008, and chlorine is 35.453.
So the total mass of your molecule is 1*12.011 + 1*1.008 + 3*35.453 (add together the weights for each atom) = 119.378 grams per mole.
To find the percent by mass of each element, divide each part by the whole. Carbon would be 1*12.011 (the mass of just the carbon) / 119.378 (the total mass of the molecule) = .1006, or 10.06%.
Repeat for the other atoms: divide 1*1.008 and 3*35.453 by the total mass.
2006-07-24 07:01:15
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answer #1
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answered by geofft 3
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1 Carbon 12
1Hydrogen 1
3 Chlorine 35*3=105
105+1+12 = 117
then take the percentages of each one
2006-07-24 18:27:22
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answer #2
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answered by countrygirlzrule 2
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Count the separate masses:
carbon: 12.0 per atom
hydrogen: 1.0 per atom
chlorine: 35.4 per atom; 106.2 in total.
total: 119.2
now calculate the ratios
C: 12/119.2 = 10.07%
H: 1/119.2 = 0.84%
Cl: 106.2/119.2 = 89.09%
2006-07-24 15:17:40
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answer #3
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answered by dutch_prof 4
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