Which of the following statements correctly describes the force between two magnets? Question 4 options: The force increases as the charge of the magnets increases. The force increases as the distance between opposite poles of the two magnets increases. The force increases as the distance between the magnets increases. The force increases as the distance between similar poles of the

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?

What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?

Select the word from the list that best fits the definition the nuclear family into which a person is born or adopted.