Aqueous Systems

1. 1Which of the following is not a strong acid?

   1. ASulfuric acid
   2. BNitric acid
   3. CEthanoic acid
   4. DHydrochloric acid
   5. EHydrofluoric acid
2. 2Substances in which states are included in a K expression?

   1. ASolid
   2. BLiquid
   3. CGas
   4. DAqueous
3. 3A precipitate forms when the ionic product [blank_start]is greater than[blank_end] the solubility product. If the ionic product [blank_start]equals[blank_end] the solubility product, the solution will be saturated.

   1. Ais greater than
   2. Bequals
   3. Cis less than
   4. Dequals
   5. Eis greater than
   6. Fis less than
4. 4Dissolving a salt in a solution containing a common ion will increase its solubillity.

   1. AVerdadero
   2. BFalso
5. 5This equation is an example of... ?

   

   1. AFormation
   2. BCombustion
   3. CSublimation
   4. DVaporisation
6. 6What is the point on the titration curve where pKa = pH?

   1. AEquivalence
   2. BHalf equivalence
   3. CThe steepest part of the curve
   4. DWhen no acid/base has been added yet
   5. EWhen the pH is 7
7. 7Which of the following multiply to 1 x 10^(-14)?

   1. AKa and Kb
   2. BpH and pOH
   3. CKs and solubility
   4. DHydronium and hydroxide concentrations
   5. EpH and hydronium ion concentration
8. 8Dissolving a basic salt in an acidic solution will [blank_start]increase[blank_end] its solubility.

   1. Aincrease
   2. Bdecrease
   3. Cnot impact
9. 9Complete the Ka expression

   

   1. AHA(aq)
   2. BH2O(l)
   3. CH3O+(aq)
   4. DA-(aq)
   5. EHA(aq)
   6. FH2O(l)
   7. GHA(aq)
   8. HH2O(l)
   9. IH3O+(aq)
   10. JA-(aq)
10. 10A neutral solution has [blank_start]equal[blank_end] concentrations of hydronium and hydroxide ions. An excess of [blank_start]hydronium[blank_end] ions makes the solution acidic and it will have a pH [blank_start]lower than 7[blank_end].

    1. Aequal
    2. Bsimilar
    3. Cdifferent
    4. Dhydronium
    5. Ehydroxide
    6. Flower than 7
    7. Ghigher than 7
    8. Hof 7

Descripción

NCEA Level 3 Chemistry Test sobre Aqueous Systems, creado por Anna Redmond el 15/10/2015.

Autor

Anna Redmond

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chemistry 91392chemistryncea level 3

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