What volume will a sample of hydrogen occupy at 28.0 oc if the gas occupies a volume of 2.23 ml at a temperature of 0.0 oc? assume that the pressure remains constant. (remember to change to kelvin)?

This chart represents the melting point of several substance. what besy explains the high melting point of the salt?

How many moles of air are there in a human lung with a volume of 2.4 l at stp? explain your answer

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?