Advertisements
Advertisements
प्रश्न
Derive the equation pH + pOH = 14.
Advertisements
उत्तर
The ionic product of water is given as:
Kw = [H3O+][OH–]
Now, Kw = 1 × 10–14 at 298 K
Thus, [H3O+][OH–] = 1.0 × 10–14
Taking logarithm of both the sides, we write
log10[H3O+] + log10[OH–] = –14
–log10[H3O+] + {– log10[OH–]} = 14
Now, pH = –log10[H3O+] and pOH = –log10[OH–]
∴ pH + pOH = 14
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:
0.002 M KOH
Calculate the pH of the following solution:
1mL of 13.6 M HCl is diluted with water to give 1 litre of solution.
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?
Calculate the pH of the resultant mixtures: 10 mL of 0.01M H2SO4 + 10 mL of 0.01M Ca(OH)2.
In NaOH solution [OH–] is 2.87 × 10–4. Calculate the pH of the solution.
Which of the following is INCORRECT statement?
Which complex among the following gives a white precipitate on treatment with an aqueous solution of barium chloride?
The pH of 0.001 M NaOH(aq) solution will be:
Select the INCORRECT relation.
pH of a solution is 12. The number H+ ions present in 1 cm3 of this solution is ____________.
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 aqueous solutions of sodium formate, anilinium chloride and potassium cyanide are respectively.
Derive the relationship between pH and pOH.
Neutral solutions have the pH of ______.
What is the pH of a 2.6 × 10-8 MH+ ion solution? (log 2.6 = 0.4150)
Define pOH.
Derive relationship between pH and pOH.
Define pOH.
Define pH.
Define pOH.
Define pOH.
Define pH.
Define pOH.
Derive relationship between pH and pOH.
Define pOH.
Define pOH.
Derive the relation pH + pOH = 14.
Define pOH.
Define the following term:
pOH
