Nitrogen and hydrogen combine to form ammonia in the haber process.

calculate (in kj) the standard enthalpy change image from custom entry toolh for the reaction written below, using the bond energies given.

n2(g) + 3h2(g) > 2nh3 (g)

bond energy (kj/mol): nimage from custom entry tooln 945; h - h 432; n h 391

You mix the pks of succinic acid are 4.21 and 5.64. how many gramsa graduate student at sdsu wants to measure the activity of a particular enzyme at ph 4.0. to buffer her reaction, she will use a buffer system based on one of the acids listed below, which acid is most appropriate for the experiment? of monosodium succinate (fw = 140 g/mol) and disodium succinate (fw = 162 g/mol) must be added to 1 l of water to produce a solution with a ph 5.28 and a total solute concentration of 100 mm? (assume the total volume remains 1 liter, answer in grams monosodium succinate, grams disodium succinate, respectively.) volumes of 0.05 m nah2po4 and 0.05 m na2hpo4 (pk's for phosphoric acid are 2.15, 6.82 and 12.38). which of the following best describes the resulting solution?

1. list three scientific reasons cockroaches may fly.

Select all of the methods through which a drug can enter your body. injection swallowing inhalation absorption