CHM 2045C Module Five Sample Name:_______________

Module Four Part P Determining the Formula of a Compound by Combustion 5 points

A 0.523 g sample of the unknown compound C_xH_y, is burned in air to give 1.612 g of CO₂ and 0.7425g of H₂O. A separate experiment gave a molar mass for C_xH_y of 114 g/mol. Determine the empirical and molecular formula for the hydrocarbon.

Additional Combustion Problems:

Read Section 3.12 pages 93-96 McMurry 5^th

See worked example 3.18 page 95 and try problems 3.27 page 95.

End of chapter 3.98, 3.99 page 104.

Q# 36-43 p 142 Kotz 5^th Edition