Quinone is an important type of molecule that is involved in photosynthesis. The transport of electrons mediated by quinone in certain enzymes allows plants to take water, carbon dioxide, and the energy of sunlight to create glucose. A 0.1964-g sample of quinone (C6H4O2) is burned in a bomb calorimeter with a heat capacity of 1.56 kJ/C. The temperature of the calorimeter increases by 3.2C. Calculate the energy of combustion of quinone per gram and per mole.
GENERAL CHEMISTRY I – DR. STREIT Week of February 21, 2016 February 23, 2016 Ionic Bonding Electrostatic attraction that holds oppositely charged ions together in an ionic compound (salts) o Transfer of electrons o Generally a metal with a nonmetal o Gain or lose electrons to fill an octet o Form large crystalline solids where each cation is surrounded by an anion, etc o High melting points o Do not conduct electricity in solid state Electrons cannot flow in a rigid structure, and electricity is defined as the flow of charged particles It does conduct in liquid or gas form because electrons are free flowing o Brittle
