所屬科目：轉學考-普通化學
12. Consider a solution containing the following cations: Na⁺, and Ag⁺. Treatment of the solution with dilute HCl followed by saturation with H2S results in formation of precipitate(s). Which ions still remain in solution ? (A) Ag⁺ only； (B) Na⁺, ； (C) Ag⁺ and ； (D) Na⁺, , and ； (E) Na⁺ only
1. Consider the following hypothetical data collected in two studies of the reaction. 2A + 2B → C + 2DIn experiment 1, [B]0 = 10.0 MIn experiment 2, [B]0 = 20.0 M Rate = -∆[A]/ ∆t Solve the value of the rate constant (k) for the reaction. Include units.
2. Calculate the equilibrium concentration of and in a 1.00 M solution of H3PO4 where the , for H3PO4 are , , and , respectively. Besides, what’s the pH of this solution?
3. You have a concentration cell with Cu electrodes and = 1.00 M (right side) and = 1.0x M (left side). Calculate the potential for this cell at 25℃. ( → Cu；= 0.34 V；
4. Carbon tetrachloride, CCl4, has a vapor pressure of 213 torr at 40℃ and 836 torr at 80℃. What’s the normal boiling point of CCl4 (in K)? (8%； R: 8.314 J・ = 0.082 L・atm・)
5. Consider the following reaction at 25℃: The value of ∆Ho and ∆So are -58 kJ/mole and -176.6 J/K.mol, respectively. Calculate the value of K at 100℃ assuming ∆Ho and ∆So do not depend on the temperature. (6%； R: 8.314 J・ = 0.082 L・atm・)
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and Ag⁺. Treatment of the solution with dilute HCl followed by saturation with H2S results in formation of precipitate(s). Which ions still remain in solution ? (A) Ag⁺ only； (B) Na⁺, 
； (C) Ag⁺ and 
； (D) Na⁺, 
, and 
； (E) Na⁺ only
→ 
∆G = -45.54 kJ； ∆H = -44.12 kJ； ∆S = -4.76 J/K 
and 
in a 1.00 M solution of H3PO4 where the 
, 
for H3PO4 are 
, 
, and 
, respectively. Besides, what’s the pH of this solution? 
= 1.00 M (right side) and 
= 1.0x
M (left side). Calculate the potential for this cell at 25℃. (
→ Cu；
= 0.34 V；
= 0.082 L・atm・
)
= 0.082 L・atm・
)