Problem: Thiophene contains only the elements carbon, hydrogen and sulfur. A sample weighing 7.96 g was burned in oxygen to give 16.65 g CO2 and 3.40 g of H2O. What is the empirical formula of thiophene? a) C2H2S b) C4H4S c) C2H4S3 d) C2H4S e) C4H4S3

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Thiophene contains only the elements carbon, hydrogen and sulfur. A sample weighing 7.96 g was burned in oxygen to give 16.65 g CO2 and 3.40 g of H2O. What is the empirical formula of thiophene?

a) C2H2S

b) C4H4S

c) C2H4S3

d) C2H4S

e) C4H4S3

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