A student sets up the electrolysis experiment following the instructions in Experiment 20. When the student's back is turned, a gremlin raises the current to a value of 0.2 amp, which is twice the value of 0.1 amp that the student initially set. Which of the following statements are true about the rate of hydrogen gas formation? a. The rate of gas formation will be approximately twice as a fast
b. The rate of hydrogen gas formation will be approximately four times greater
c. The rate of gas formation will be approximately 1/4 as fast
d. The rate of gas formation will be approximately one-half as fast
e. The rate of gas formation will remain the same

One significant difference between an ionic bond, where electrons are taken from one atom and added to another atom, and a covalent or metallic bond, where electrons are shared is

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?

Light waves travel than sound waves.