Terephthalic acid is an important chemical used in the manufacture of polyesters and plasticizers. It contains only C, H, and O. Combustion of 20.20 mg terephthalic acid produces 42.81 mg CO2 and 6.57

Terephthalic acid is an important chemical used in the manufacture of polyesters and plasticizers. It contains only C, H, and O. Combustion of 20.20 mg terephthalic acid produces 42.81 mg CO2 and 6.57 mg H2O. If 0.299 moles of terephthalic acid has a mass of 49.7 g, determine the molecular formula for terephthalic acid.

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