Advertisements
Advertisements
प्रश्न
The pH of 0.1M solution of cyanic acid (HCNO) is 2.34. Calculate the ionization constant of the acid and its degree of ionization in the solution.
Advertisements
उत्तर
c = 0.1M
pH = 2.34
−log[H+] = pH
−log[H+] = 2.34
[H+] = 4.5 × 10−3
Also,
[H+] = cα
4.5 × 10−3 = 0.1 × α
`(4.5 xx 10^(-3))/0.1` = α
α = 4.5 × 10−3 = 0.045
Then,
Ka = cα2
= 0.1 × (45 × 10−3)2
= 202.5 × 10−6
= 2.02 × 10−4
संबंधित प्रश्न
It has been found that the pH of a 0.01M solution of an organic acid is 4.15. Calculate the concentration of the anion, the ionization constant of the acid and its pKa.
Assuming complete dissociation, calculate the pH of the following solution:
0.005 M NaOH
The degree of ionization of a 0.1M bromoacetic acid solution is 0.132. Calculate the pH of the solution and the pKa of bromoacetic acid.
The pH of 0.005M codeine (C18H21NO3) solution is 9.95. Calculate its ionization constant and pKb.
The solubility of Sr(OH)2 at 298 K is 19.23 g/L of solution. Calculate the concentrations of strontium and hydroxyl ions and the pH of the solution.
The CORRECT match between transition metal ion and its colour in aqueous solution.
Following solutions were prepared by mixing different volumes of NaOH of HCl different concentrations.
i. 60 mL `"M"/10` HCl + 40 mL `"M"/10` NaOH
ii. 55 mL `"M"/10` HCl + 45 mL `"M"/10` NaOH
iii. 75 mL `"M"/5` HCl + 25 mL `"M"/5` NaOH
iv. 100 mL `"M"/10` HCl + 100 mL `"M"/10` NaOH
pH of which one of them will be equal to 1?
The pH of 10−5 M KOH solution will be ____________.
Acidity of \[\ce{BF3}\] can be explained on the basis of which of the following concepts?
The aqueous solution of sugar does not conduct electricity. However, when sodium chloride is added to water, it conducts electricity. How will you explain this statement on the basis of ionisation and how is it affected by concentration of sodium chloride?
Derive the relationship between pH and pOH.
Calculate the pH of a buffer solution containing 0.1 M CH3COOH and 0.05 M CH3COONa. Dissociation constant of CH3COOH is 1.8 × 10-5 at 25°C.
Define pOH.
Derive relationship between pH and pOH.
Define pH.
Derive the relationship between pH and pOH.
Define pOH.
Derive relationship between pH and pOH.
Which from the following compound in aqueous medium having minimum pH?
