A2.400-g sample of meat is subjected to kjeldahl analysis. the liberated nh3(g) is absorbed by adding 50.00 ml of h2so4(aq), which is more than enough. this occurs through the reaction 2nh3(g)+h2so4(aq)→(nh4)2so4(aq) the excess acid requires 19.90 ml of 0.5510 m naoh for its complete neutralization.

a 20-cm-long, cylindrical graphite (pure carbon) rod is inserted into an oxidizing atmosphere at 1145 k and 1.013 x 105 pa pressure. the oxidizing process is limited by the diffu- sion of oxygen counterflow to the carbon monoxide that is formed on the cylindrical surface.

it should have an internal chamber and two thermometers sticking out of the top. the internal chamber will also be closed off from the outside.