A sealed faskintally contains pure nitrogen dioxide gas (NO2) Over time the nitrogen dioxide forms dinitrogen tetroxide gas N20) The graph below shows the relative amounts of (NO2) and (N2O2) over time What is true about the time indicated by the blue arrow

What is the relation between concentration of reactants and the rate of chemical reaction?

What is the ima of the 1 st class lever in the graphic given? 2 3 0.5

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?