1. Suppose 50.00 mL of 2.0 × 10–4 M Fe(NO3)3 is addedto 50.00 mL of 2.0 ×10-6 M KIO3. Which of the followingstatements is true? For Fe(IO3)3, Ksp = 1.0 ×10–14.
A) A precipitate forms because Qc >Ksp.
B) A precipitate forms because Qc <Ksp.
C) No precipitate forms because Qc <Ksp.
D) No precipitate forms because Qc =Ksp.
E) No precipitate forms because Qc >Ksp.
2. For which of the following reactions is ∆S° > 0at 25°C?
A) 2H2(g) + O2(g) → 2H2O(g)
B) 2ClBr(g) → Cl2(g) + Br2(g)
C) I2(g) → I2(s)
D) 2NO(g) + O2(g) → 2NO2(g)
E) NH4HS(s) → NH3(g) + H2S(g
3. What is E of the following cell reaction at25°C? Cu(s) | Cu2+(0.017 M) || Ag(s), (Ag+ =0.18M)
E°cell = 0.460 V.
A) 0.468V
B) 0.282 V
C) 0.460 V
D) 0.490 V
E) 0.479V
