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How does the pH change when the solution...

How does the pH change when the solution of base is diluted with water ?

Text Solution

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Upon diluting a solution of base with water, the number of `OH^(-)` ions in solutin per unit volume decrease. The basic strength of the base decreases and pH of solution decreases.
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(a) Why does an aqueous solution of an acid conduct electricity ? (b) How does the concentration of hydrogen ions [H_(3)O]^(+) change when the solution of an acid is diluted with water ? (c ) Which has a higher pH value , a concentrated or dilute solution of hydrochloric acid ? (d) what happens when hydrochloric acid reacts with (i) sodium bicarbonate placed in a test tube ? (ii) zinc metal in a test tube ?

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Knowledge Check

  • Enthalpy change when a solution is diluted from 4 M to 2 M is -1.6 KJ/mol . Enthalpy change when 5 litre of such a solution is diluted, is:

    A
    `-1.6KJ`
    B
    `-3.2KJ`
    C
    `-32Kj`
    D
    `-16KJ`

  • How much will the reduction potential of a hydrogen electrode change when its solution initially at pH=0 is neutralized to pH=7 ?

    A
    Increase by `0.059V`
    B
    Decrease by `0.059V`
    C
    Increase by `0.41V`
    D
    Decrease by `0.41V`

  • How much will the reduction potential of a hydrogen electrode change when Its solution initially at pH =0 is neutralized to pH =7?

    A
    Increase by 0.059V
    B
    Decrease by 0.059V
    C
    Increase by 0.41V
    D
    Decrease by 0.41V

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    How does pH change with hydrogen ion concentration?

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