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Equilibrium Tes...

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  • Question 1
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    Which of the following solution mixture will show resistance to the small addition of acids?

  • Question 2
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    Percentage dissociation of a $$0.024 M$$ solution of a weak acid $$HA$$ is: 

    ($${K_a}=2 \times 10^{-3}$$)

  • Question 3
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    Directions For Questions

    The dissociation constant of acetic acid is $$2.0\times 10^{-5}$$. An aqueous solution of acetic acid is prepared by dissolving $$0.7$$ millimole acetic acid in sufficient water to get $$10^{3}\ m$$ of solution at $$25^{o}C$$.

    ...view full instructions

    What is the concentration of unionized acetic acid in the solution?

  • Question 4
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    Which of the following is the correct order of hydrated radii?

  • Question 5
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    Conversion of ozone into oxygen is an exothermic reaction what are the favourable condition of temperature and pressure for the dissociation of ozone?

  • Question 6
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    Which of the following mixtures will be a buffer solution when dissolved in $$500.00\ ml$$ of water?

  • Question 7
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    The following reversible reaction is at equilibrium.


    $$[Cu(NH_3)_4]^{2+} + SO_3^{2-} \rightleftharpoons [Cu(NH_3)_2SO_3]+NH_3$$ 

    What would not happen if ammonia is added-

  • Question 8
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    What $$[H^+]$$ must be maintained in a saturated solution to ppt. $$Pb^{+2}$$ but not $$Zn^{+2}$$ from a solution in which each ion is present at a concentration of $$0.01\ M$$? 

    Given, $$K_{sp}$$ for $$H_2S=1.1\times 10^{-22}$$, $$K_{sp}$$ for $$ZnS=10^{-21}$$.

  • Question 9
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    Consider the following reaction.
    $$C(S, diamond) \leftrightharpoons C(S, graphite) +$$ heat
    Choose the correct option.

  • Question 10
    1 / -0

    Which mixture forms a buffer when dissolved in 1 L of water?

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