A solution is made by adding solid NaCN to a 0.0300 M HCN solution until the [NaCN] = 0.0150 M. Calculate the pH of the solution when it reaches equilibrium.

c u c l 2 + 2 n a n o 3 → c u ( n o 3 ) 2 + 2 n a c l

  long weird answer but i hope this works

true

hope that

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