Consider two acids: cl2chco2h (dichloroacetic acid, pka = 1.3) and hco2h (formic acid, pka = 3.8). which acid has the larger ka? select the single best answer.

Dumbledore decides to gives a surprise demonstration. he starts with a hydrate of na2co3 which has a mass of 4.31 g before heating. after he heats it he finds the mass of the anhydrous compound is found to be 3.22 g. he asks everyone in class to determine the integer x in the hydrate: na2co3·xh2o; you should do this also. round your answer to the nearest integ