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August 27, 2014

Homework Help: Chemistry

Posted by sean P. on Sunday, April 25, 2010 at 10:19am.

Terephthalic acid is an important chemical used in the manufacture of polyesters and plasticizers. It contains only C, H, and O. Combustion of 19.81 mg terephthalic acid produces 41.98 mg CO2 and 6.45 mg H2O. If 0.262 mol of terephthalic acid has a mass of 43.5 g, determine the molecular formula for terphthalic acid.

would i convert these to grams, making it look like this?
.01981g--> .04198g CO2 + .00645g H2O

um the percent of carbon in CO2 is 27.29%
and Hydrogen is 11.19% then i multiply it to get the grams... but idk what to do after that

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