Hydrogen cyanide is prepared commercially by the reaction of methane, CH4(g), ammonia, NH3(g), and oxygen, O2(g), at high temperature. The other product is gaseous water. a. Write a chemical equation for the reaction. b. What volume of HCN(g) can be obtained from the reaction of 20.0 L CH4(g), 20.0 L NH3(g), and 20.0 L O2(g)? The volumes of all gases are measured at the same temperature and pressure
Note Set #7 – week 9 Analytical Chemistry POTENTIOMETRIC PRECIPITATION TITRATIONS Essentially, a precipitation rxn is used to monitor/control a redox reaction in an aqueous cell. By using what we know about precipitation and solubility, we can calculate electric potentials at various point during the precipitation titration o If for example we are titrating sodium iodide with copper nitrate, and trying to determine the voltage of the half-cell, we must look at two distinct rxns. The precipitation/titration rxn is b/w the dissolved Cu ion as it is added and the I ion. - + - 12 Cu + I CuI (s) K f 10 =========== titrat