Example: biology
Search results with tag "Chem 12 hess law worksheet 2019"
CHEM 12 Hess Law Worksheet 2019
cpb-ca-c1.wpmucdn.comCHEM 12 Hess’s Law Worksheet 1. Calculate the ΔH for the reaction: C 2H 4 (g) + H 2 (g) à C 2H 6 (g), from the following data: C 2H 4 (g) + 3 O 2 (g) à 2 CO 2 (g) + 2 H 2O (l) ΔH = − 1411 kJ / mole C 2H 6 (g) + 7/2 O 2 (g) à 2 CO 2 (g) + 3 H 2O (l) ΔH = − 1560. kJ / mole H 2 (g) + ½ O 2 (g) à H 2O (l) ΔH = − 285.8 kJ / mole 2. Calculate the ΔH for the reaction: