How many grams of dry nh4cl need to be added to 2.10l of a 0.700m solution of ammonia, nh3, to prepare a buffer solution that has a ph of 8.59? kb for ammonia is 1.8×10−5.

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 positions which points up in upward carbon and down in downward carbon are axial

and vice versa holds true for equatorial positions

so the correct answer with labelled diagram will be