A25.0-ml sample of an h2so4 solution requires 50.0 ml of 0.150 m naoh to completely react with the h2so4. what was the concentration (molarity, m) of the h2so4 solution?
h2so4(aq) + 2 naoh(aq) à na2so4(aq) + 2 h2o(l)

answer: the figure is attached herewith.

step-by-step explanation:   we are given to sketch a unit circle and label the terminal points corresponding to

in the attached figure, we have drawn a unit circle, with centre at o(0,0) and radius 1 unit. we have labelled the points a, b, c, d and e corresponding to the angles below

∠aox = 60°,

∠box = 120°,

∠cox = 180°,

∠dox = 240°,

∠eox = 300°.

and the coordinates are a(0.5,1), b(-0.5,1), c(-1,0), d(-0.5,-1) and e(0.5,-1).

thus, the answer is complete.

20 drops hope this