Disulfide dichloride (S2Cl2) is used in the vulcanization of rubber, a process that prevents the slippage of rubber molecules past one another when stretched. It is prepared by heating sulfur in an atmosphere of chlorine: S8(l) 1 4Cl2(g) 4S2Cl2(l) What is the theoretical yield of S2Cl2 in grams when 4.06 g of S8 are heated with 6.24 g of Cl2? If the actual yield of S2Cl2 is 6.55 g, what is the percent yield?
Chapter 6: Thermochemistry Section 6.1: Hand warmers Thermochemistry: Study of relationships between chemistry and energy This is the reaction that 4Fe(s) + 3O (2) Fe O2(3) occurs in the hand warmer packages when used. But where does the heat come from o There is certain energy in each component of the reaction but the overall energy on the right side (reactants) is not equal to the overall energy on the left side (products), therefore: 4Fe(s) + 3O (2) Fe O2(3) + HEAT Section 6.2: Terms and Definitions Energy: Ability to do work
