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The ionization constant of acetic add is 1.74 x${{10}^{-5}}$ . Calculate the degree of dissociation of acetic add in its 0.05 M solution. Calculate the concentration of acetate in the solution and its pH
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0
|
2766
|
August 12, 2016
|
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(a)State Le-Chatelier's principle
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1
|
4700
|
August 12, 2016
|
|
Find the pH of the following solutions:
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1
|
1200
|
August 12, 2016
|
|
If 0-561 g of KOH is dissolved in water to give 200 mL of solution at 298 K. Calculate the concentrations of potassium, hydrogen and hydroxyl ions. What is its pH?
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0
|
2749
|
August 12, 2016
|
|
The ionisation constant of HF, HCOOH and HCN at 298 K are 6.8 x${10}^{-4}}$, 1-8 X${{10}^{-4}}$ and 4.8 x ${{10}^{-9}}$ respectively. Calculate the ionization constants of the corresponding conjugate bases?
|
|
0
|
3259
|
August 12, 2016
|
|
It has been found that the pH of a 0.01M solution of an organic acid is 4.15. Calculate concentration of anion, ${{K}^{n}}$ and p${{K}^{n}}$?
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0
|
2933
|
August 12, 2016
|
|
Calculate is iobization constant and p${{k}^{b}}$
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|
1
|
609
|
August 12, 2016
|
|
The degree of ionization of a 0.1 M bromoacetic add solution is 0.132. Calculate the pH of the solution and the pKof bromoacetic add
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0
|
2400
|
August 12, 2016
|
|
Ionic product of water at 310 K is 2.7 x ${10}^{-14}}$. What is the pH of neutral water at this temp.?
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|
0
|
2124
|
August 12, 2016
|
|
The ionic product of water is 0.11 x ${{10}^{-14}}$ at 273 K, 1 x ${{10}^{-14}}$ at 298 K and 7.5 x ${{10}^{-14}}$ at 373. Deduce from this data whether the ionization of water to Hydrogen and Hydroxide ion is exothermic or endothermic?
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0
|
664
|
August 12, 2016
|
|
The concentration of Hydrogen ion in a sample of soft drink is 3.8 x${{10}^{-3}}$ M, what is its pH?
|
|
0
|
5810
|
August 12, 2016
|
|
(i)State the formula and name of the conjugate base of each of the following acids:
|
|
1
|
1507
|
August 12, 2016
|
|
Calculate the hydrogen ion concentration in the following biological fluids whose pH are given below:
|
|
1
|
6467
|
August 12, 2016
|
|
Assuming complete dissodation calculate pH for the following solutions:
|
|
1
|
1230
|
August 12, 2016
|
|
Classify the following species into Lewis acid and base:
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|
1
|
488
|
August 12, 2016
|
|
The species${{H}_{2}}$O, H${{CO}_{3}}$, HS${{O}_{4}}$ and N${{H}_{3}}$ can act both as Bronsted acid and bases. For each case give the corresponding conjugate acid and base
|
|
0
|
780
|
August 12, 2016
|
|
Write the correctly balanced net ionic equation for the reaction whose equilibrium constant at 298 K is:
|
|
1
|
1697
|
August 12, 2016
|
|
Write the conjugate Acids for the following Bronsted Bases:
|
|
1
|
682
|
August 12, 2016
|
|
1.Write the expression for and ${{K}_{p}}$
|
|
1
|
613
|
August 12, 2016
|
|
Which of the following reactions will be affected by increase in pressure ? Also mention whether this change will cause the reaction to go into forward or backward direction?
|
|
1
|
3776
|
August 12, 2016
|
|
State Le Chatelier's principle
|
|
0
|
3046
|
August 12, 2016
|
|
Bromine monochloride (BrCl) decomposes into bromine and chlorine and attains the equilibrium
|
|
1
|
2041
|
August 12, 2016
|
|
Ethyl acetate is formed by the reaction between ethanol and acetic acid and equilibrium is represented as:
|
|
1
|
3887
|
August 12, 2016
|
|
Give relation between ${{K}_{p}}$ and IQ for above equation
|
|
1
|
844
|
August 12, 2016
|
|
${{K}_{p}}$ = 0.04 atm 899 K for the equilibrium shown below. What is the equilibrium concentration of ${{C}_{2}}$${{H}_{^}}$when it is placed in a flask at 4.0 atm pressure and allowed to come to equilibrium?
|
|
0
|
709
|
August 12, 2016
|
|
1 mole of ${{H}_{2}}$O and 1 mole of CO are taken in a 10 litre vessel and heated at 125 K. At equilibrium 40% of water (by mass) reacts with CO according to the equation
|
|
1
|
1762
|
August 12, 2016
|
|
(i) Give two important characteristics of chemical equilibrium
|
|
1
|
1883
|
August 12, 2016
|
|
What is ${{K}_{c}}$ at this temperature?
|
|
1
|
556
|
August 12, 2016
|
|
Nitric oxide reacts with ${{Br}_{2}}$ and gives Nitrosyl Bromide as per reaction given below:
|
|
1
|
1008
|
August 12, 2016
|
|
What is ${{K}_{c}}$ for the reverse reaction?
|
|
1
|
529
|
August 12, 2016
|