7) Which solution is the most acidic? Show your work.
a) pH = 5.6
c) [OH-] = 3.1 x 10-8M
b) pOH = 9.2
d) [H+] = 6.25 x 10-11 M

Enough of a monoprotic weak acid is dissolved in water to produce a 0.0172 m solution. if the ph of the resulting solution is 2.39 at 20 °c, determine the pka for the acid.

Read these sentences from the text. near the equator, the tropics receive the most rain on a consistent basis. as a result, the fresh water falling into the ocean decrease the salinity of the surface water in that region. [. .] . . as the salt content of sea water increases, so does its density. what can you infer about how rain affects the density of surface water near the equator?

Melissa is interested in her family tree and how her family has changed over its many generations. melissa probably more closely resembles