The ph of 89 mm nh4oh solution is 11.1 at 25 °c and 1 atm. (a) determine the dissociation constant of this weak electrolyte. (b) when the nh4oh solution is diluted to 0.01 m (ie, 10 mm), determine the degree of the dissociation and the ph of the solution. (c) how does the degree of dissociation of nh4oh solution change (increases or decreases) with the solution concentration?

indicate valleys, hills, steepness and gentleness of slopes.

explanation:

contour lines on a map indicate elevation, or depth. numeric notations on contour lines refer to the level of elevation, or height about sea level.

the answer is b because, investigating whether another species of moth also drinks tears might be interesting, but it would not directly explain why this species of moth does.

to explain why this species of moth drinks tears, the scientist could ask: "what nutrients that moths need are in elephant tears? "

the scientist could experiment with moth repellent or oter ways to keep the moths away, but that would not answer his original question.