Name the phase transition in each of the following situa- tions and indicate whether it is exothermic or endothermic: (a) bromine vapor turns to bromine liquid as it is cooled. (b) crystals of iodine disappear from an evaporat- ing dish as they stand in a fume hood. (c) rubbing alcohol in an open container slowly disappears. (d) molten lava from a volcano turns into solid rock.
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Chemistry, 22.06.2019 05:00
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?
Answers: 2
Chemistry, 23.06.2019 03:00
Select the correct answer. wax is a nonpolar substance. in which type of substance is it most soluble?
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Chemistry, 23.06.2019 07:30
How do you interpret a chromagram for what mixtures contain?
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Name the phase transition in each of the following situa- tions and indicate whether it is exothermi...
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