Question 1
The net formation constant for tetraamminezinc(II) is 4.1 × 10
8. What would be the approximate potential of the galvanic cell symbolized below?
Zn(s)/Zn(NH
3)
42+ (aq, 1.0 M), NH
3(aq, 1.0 M)//Zn
2+(aq, 1.0 M)/Zn(s)
◦ 0.76 V
◦ 0.00 V
◦ 0.51 V
◦ 0.25 V
◦ 1.02 V
Question 2
The paramagnetism of transition element compounds is caused by:
◦ unshared valence electron pairs
◦ unpaired electrons located in
d and
f orbitals
◦ unshared valence electron pairs and optimum packing of the atoms in the crystal lattice
◦ paired electrons spinning in opposite directions
◦ shared valence electron pairs