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12th Standard English Medium Chemistry Subject Ionic Equilibrium Book Back 3 Mark Questions with Solution Part - I Question Bank Software Jun-02 , 2021

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12th Standard English Medium Chemistry Subject Ionic Equilibrium Book Back 3 Mark Questions with Solution Part - I

12th Standard English Medium Chemistry Subject Ionic Equilibrium Book Back 3 Mark Questions with Solution Part - I

12th Standard

    Reg.No. :
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Chemistry

Time : 00:30:00 Hrs
Total Marks : 15

    Part I

    5 x 3 = 15

  1. Define pH.

  2. 50ml of 0.05M HNO3 is added to 50ml of 0.025M KOH. Calculate the pH of the resultant solution.

  3. Calculate the extent of hydrolysis and the pH of 0.1 M ammonium acetate Given that \(K_{a}=K_{b}=1.8\times10^{-5}\)

  4. A solution of 0.10M of a weak electrolyte is found to be dissociated to the extent of 1.20% at 25oC. Find the dissociation constant of the acid.

  5.  Find the pH of a buffer solution containing 0.20 mole per litre sodium acetate and 0.18 mole per litre acetic acid. Ka for acetic acid is \(1.8\times10^{-5}\).

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