PH of a solution containing 0.81 M HA and 0.35M A-? Ka HA= 5.45x10^-8​

we need the questions , i may then you.

ok whats the question if not i cannot you i need question and need a thing to answer

the correct answer would be b. amelia, because the particals of gas move really fast (charged particals) and gas also has a lot of room (particals move independently) so the only answer that has both of those is amelia's.