Suppose you perform a titration of a diprotic acid and you determine the following information: pH at first equivalence point: 4.26 pH at second equivalence point: 8.39 pH at first half-equivalence point: 2.22 pH at second half-equivalence point: 6.37 What is pKa2 for this unknown acid

How does a sample of helium at 15 degree celsius compare to a sample of helium at 215 k? a) the helium at 15 degrees celsius has a higher average kinetic energy that the sample at 215 k. b) the helium at 15 degrees celsius has lower nuclear energy that the sample at 215 k. c) the helium at 15 degrees celsius has slower- moving atoms that the sample at 215 k. d) the helium at 15 degrees celsius has smaller atoms than the sample at 215 k.