Ionic equilibrium
Q1.write the formula for ka,kb [eqm constants] in terms of degree of
disassociation and concentrations.
Q2.what do you understand from pka write its formula and relation betwn
pka , pkb and pkw
Q3. Write the formula for ph, poh and their relation with pkw. And its value
Q4 write the formula for ph of acidic & basic buffer and how are they formed.
Q6. What is meant by salt hydrolysis.what does kh signify,
Q7 write the formula of kh and ph in terms of both constants of parents as
well as ∝[ disassociation constant]
A] for salt of weak acid weak base b] salt of weak base strong acid c] salt of
weak acid and weak base.
Q8 complete the following table.
x
q9.what do you understand by solublity product and write its formula.
Ionic equilibrium
Q1
q7
Q2 pKa = − log Ka[. The higher the ka the lower the
pka]
Q7b
Q3.
pH + pOH = pKw = − log 10-14= 14 at 25C
.
Q7c
Q6.in salt hydrolysis the cation part of salt interacts with OH- of
water and the anionic part interacts with the H+ from water if any
component forms a strong base or acid for eg Na+ from salt and OHfrom water as it is a strong base it again disassociates into ions.kh
signifies the rate of hydrolysis. In this kh conc of h20 liq is constant.
Ionic equilibrium