Calculate pCd2+ at each of the given points in the titration of 40.00 mL of 0.0080 M Cd2+ with 0.0080 M EDTA in the presence of the auxiliary complexing agent NH3 . The solution is buffered at a pH of 11.00 and the NH3 concentration is fixed at 0.100 M. The formation constant for the Cd2+−EDTA complex is Kf=2.9×1016 .

The answer would be c. fish

Igonna be honest i dunno that one srry

D. most models represent a real world object in a simpler way

For cyclohexane compounds drawn in a chair conformation:   -axial bonds are vertical  -equatorial bonds are parallel to two bonds within the ring.  thus, as i assume the chair conformation is drawn:   -the x group is in an axial position, as are the five other vertical bonds.  -three axial bonds are on the top face of the ring  -the other three axial bonds are on the bottom face  the position of the second substituent on each ring carbon is equatorial.  gauche groups must be on an adjacent carbon such as carbon 6 and carbon 2, and also gauche groups are rotated by 60 degrees relative to each other.  drawing the newman projections for c1–c2 and c1–c6 aids in visualizing the groups that are gauche to the y group on c1.  click this link and watch some academic videos that may you more understand the topic