A chemist titrates 50.0mL of a 0.2431M benzoic acid HC6H5CO2 solution with 0.7074M NaOH solution at 25°C. Calculate the pH at equivalence. The pKa of benzoic acid is 4.20. Round your answer to 2 decimal places.

Note for advanced students: you may assume the total volume of the solution equals the initial volume plus the volume of NaOH solution added.

If we compare and contrast electromagnetic waves with sound waves, all but one statement is true. that is a) sound waves require a medium to travel while electromagnetic waves do not. b) electromagnetic waves can travel through the vacuum of space while sound waves cannot. c) electromagnetic waves must have a medium in which to travel, but sound waves can travel anywhere. eliminate d) sound waves must bounce off of matter in order to travel while electromagnetic waves do not require matter to be present.