Calculate the ph for each of the cases in the titration of 25.0 ml of 0.250 m pyridine, c5h5n(aq) with 0.250 m hbr(aq) . a. before addition of any hbr 9.33 b. after addition of 12.5 ml of hbr 5.23 c. after addition of 14.0 ml of hbr 4.63 d. after addition of 25.0 ml of hbr 3.07 e. after addition of 29.0 ml of hbr

Which solution is an example of a nonelectrolyte? a. iodine in hexane b. sodium nitrate in waterc. acetic acid in waterd. hydrogen chloride in water

In an investigation that uses the scientific method, which step immediately follows making a hypothesis? o summarizing the results o asking a question o making observations designing an experiment mark this and retum save and exit next submit

Consider the reaction of a(g) + b(g) + c(g) => d(g) for which the following data were obtained: experiment initial [a], mol/l initial [b], mol/l initial [c], mol/l initial rate, mol/l.s 1 0.0500 0.0500 0.0100 6.25 x 10^-3 2 0.100 0.0500 0.0100 2.50 x 10^-2 3 0.100 0.100 0.0100 1.00 x 10^-1 4 0.0500 0.0500 0.0200 6.25 x 10^-3 what is the rate law for the reaction?