When students work in a chemistry lab, the location of which item would be the most important for each student to know? broom and dust pan, in case the student needs to sweep up broken glass
baking soda, in case the student needs to neutralize an acid spill
ice maker, in case the student needs to cool off hot glassware
safety shower, in case a chemical is spilled on the student’s body

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?

Compare and contrast physical changes with chemical changes.

The number of neutrons is equal to the atomic number minus the atomic mass. a. true b. false