Author: Anonymous

I hereby swear that I accept and will comply to all aspects of the UF honor code including the assertion: “I have neither given nor received any unauthorized aid in the execution of this exam” I am also currently shredding my scratch paper.

  Determine whether a 0.1M solution formed from each of the following salts would be acid, basic, or neutral. NaNO3 [1] NH4Cl [2] KNO2 [3] NH4HCO3 [4] NaHS [5]  

  Determine whether a 0.1M solution formed from each of the following salts would be acid, basic, or neutral. KCl [1] NaCN [2] CH3NH3I [3] NH4ClO [4] NaHCO3 [5]  

What is the pH of a 0.025 M CH3COONa solution? Express using 2 decimal places.

Consider the following curve for the titration of a weak monoprotic acid (HA) with a strong base and answer each of the following questions: If the question asks for a volume, express your answer in increments of 5 mL (ex: 0, 5, 10, etc.). For all other questions, express your as a whole numbers (1, 2, 3, etc). A. What is the pH at the equivalence point? [A] B. What is the volume of added base at the equivalence point? [B] mL C. At what volume of added base is the pH calculated by working an equilibrium problem based on the initial concentration and Ka of the weak acid? [C] mL D. At what volume of added base does pH=pKa? [D] mL E. What is the pKa of the acid? [E]

A solution contains 0.002 M CO32− and 0.002 M OH−. Choose an answer that fulfills the two following questions when Co(NO3)2 is added slowly to the solution above. Ksp(CoCO3) = 1.0×10−13 and Ksp(Co(OH)2) = 1.0×10−15 Which salt will precipitate first AND what concentration of Co(NO3)2 added will cause its precipitation?  

In the compound K2[Mg(EDTA)] the oxidation number and coordination number of Magnesium are [ON] and [CN] respectively.

Consider the complex ion [Mn(CN)6]3–. Which of the following responses includes all of the true statements with respect to this complex ion and the ions from which it was formed, and no false statements? I. The complex ion is octahedral. II. Mn3+ is a d5 ion. III. CN– is a strong field ligand. IV. CN– is a weak field ligand. V. The complex ion is a low spin complex. VI. The complex ion is a high spin complex. VII. The complex ion is diamagnetic VIII. The complex ion is paramagnetic

A solution is prepared by adding 0.10 mol of Cobalt (II) Sulfate, CoSO4, to 1.00 L of water. Which statement about the solution is correct?

What is the pH of 0.50 M aqueous ethylamine (CH3CH2NH2)? (Kb of CH3CH2NH2= 4.3 x 10–4)