Combustion of table sugar produces CO2(g) and H2O(l). When 1.46 g table sugar is combusted in a constant-volume (bomb) calorimeter, 24.00 kJ of heat is liberated. a. Assuming that table sugar is pure sucrose, C12H22O11(s), write the balanced equation for the combustion reaction. b. Calculate E in kJ/mol C12H22O11 for the combustion reaction of sucrose. c. Calculate H in kJ/mol C12H22O11 for the combustion reaction of sucrose at 25C.
Lecture Notes: 9/29/9 Theory Development o Original ideas came from the Greek: developed from philosophy; "Atomos" not to be cut o Not based on experimental evidence o Elements: Earth, Fire, Air, and Water o Atoms were thought to be in constant motion based on watching movement of specks of dust in the sunlight and that there was nothing or a "void" between them (later called Brownian motion) o Believed shape of atoms determines the properties Earth would have cubic shape o Microscopic structure determines macroscopic properties Elements and Compounds and Molecules o Atom is the smallest unit of an atom o Elements are ordered