GradePack

    • Home
    • Blog
Skip to content
bg
bg
bg
bg

GradePack

The following scenes (1, 2, and 3) represent solutions of ca…

The following scenes (1, 2, and 3) represent solutions of calcium (gray) and iodate (black and red) ions that are above solid calcium iodate Ca(IO3)2. (The solid, other ions, and water are not shown)   a. Which scene best represents the solution in equilibrium with the solid in water? [A] b. In which, if any, other scene(s) will additional solid form? [B] c. Once the equilibrium has established in all scenes if applicable, how will addition Ca(NO3)2 (aq) affect the mass of solid present in any scene? [C]

Read Details

Give the systematic name for [Ni(en)2(H2O)2]Cl2 (where en =…

Give the systematic name for [Ni(en)2(H2O)2]Cl2 (where en = ethylenediamine)

Read Details

I hereby swear that I accept and will comply to all aspects…

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.

Read Details

A popular buffer solution consists of carbonate (CO32–) and…

A popular buffer solution consists of carbonate (CO32–) and hydrogen carbonate (HCO3–) conjugate acid-base pair.  Which, if any, of the following such buffers can neutralize the greatest amount of added sodium hydroxide, while remaining within its buffer range?

Read Details

  Determine whether a 0.1M solution formed from each of the…

  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]  

Read Details

  Determine whether a 0.1M solution formed from each of the…

  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]  

Read Details

What is the pH of a 0.025 M CH3COONa solution? Express using…

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

Read Details

Consider the following curve for the titration of a weak mon…

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]

Read Details

A solution contains 0.002 M CO32− and 0.002 M OH−. Choose an…

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?  

Read Details

In the compound K2[Mg(EDTA)] the oxidation number and coordi…

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

Read Details

Posts pagination

Newer posts 1 … 44,143 44,144 44,145 44,146 44,147 … 56,955 Older posts

GradePack

  • Privacy Policy
  • Terms of Service
Top