Advertisements
Advertisements
प्रश्न
Answer the following in one sentence :
Calculate the pH of 0.01 M sulphuric acid.
Advertisements
उत्तर
Given: Concentration of sulphuric acid = 0.01 M
To find: pH
Formula: pH = `-"log"_10["H"_3"O"^+]`
Calculation:
Sulphuric acid (H2SO4) is a strong acid. It dissociates almost completely in the water as:
\[\ce{H2SO4_{(aq)} + 2H2O_{(l)} -> 2H3O^+_{ (aq)} + SO^{2-}_{4(aq)}}\]
Hence, [H3O+] = 2 × c = 2 × 0.01 M = 2 × 10-2 M
From formula (i),
pH = -log10[H3O+] = -log10[2 × 10-2] = `-"log"_10"2" - "log"_10"10"^-2`
= `-"log"_10"2" + 2 = 2 - 0.3010`
pH = 1.699
The pH of 0.01 M sulphuric acid is 1.699.
APPEARS IN
संबंधित प्रश्न
Assuming complete dissociation, calculate the pH of the following solution:
0.003 M HCl
Assuming complete dissociation, calculate the pH of the following solution:
0.005 M NaOH
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.
Calculate the pH of the resultant mixtures: 10 mL of 0.2M Ca(OH)2 + 25 mL of 0.1M HCl.
Which of the following solution will have a pH value equal to 1.0?
Choose the most correct answer :
Blood in the human body is highly buffered at a pH of ________.
Choose the most correct answer :
For pH > 7 the hydronium ion concentration would be _________.
Define pOH.
The pH of 0.001 M NaOH(aq) solution will be:
pH of a solution is 12. The number H+ ions present in 1 cm3 of this solution is ____________.
The pH of 0.001 M HCl solution is ______.
What is the pH of 0.01 M solution of ammonium hydroxide which is 10% dissociated?
Which of the following is CORRECT for an aqueous solution of NH4CN?
[Ka of HCN = 4.0 × 10−10, Kb for NH4OH = 1.8 × 10−5]
Equal volumes of three acid solutions of pH 1, 2 and 3 are mixed in a vessel. What will be the H+ ion concentration in the mixture?
The concentration of hydroxide ion in a water sample is found to be 2.5 × 10−6 M. Identify the nature of the solution.
Calculate the pH of 1.5 × 10−3 M solution of Ba(OH)2.
50 ml of 0.05 M HNO3 is added to 50 ml of 0.025 M KOH. Calculate the pH of the resultant solution.
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?
Define pH.
Define pH.
Define pH.
Define pOH.
Define pOH.
Define pH.
Define pH.
Define pOH.
Define the following term:
pH
