Advertisements
Advertisements
Question
Which of the following solution will have a pH value equal to 1.0?
Options
50 mL of 0.1 M HCl + 50 mL of 0.1 M NaOH
60 mL of 0.1 M HCl + 40 mL of 0.1 M NaOH
20 mL of 0.1 M HCl + 80 mL of 0.1 M NaOH
75 mL of 0.2 M HCl + 25 mL of 0.2 M NaOH
Advertisements
Solution
75 mL of 0.2 M HCl + 25 mL of 0.2 M NaOH
Explanation:
75 mL of 0.2M HCl + 25 mL of 0.2M NaOH
HCl moles = `0.2 xx 75/1000 = 0.015` mol
NaOH molecules = `0.2 xx 25/1000 = 0.005` mol
Excess HCl = 0.01 mol
Total volume = 100 mL = 0.1 L
log(0.1) = 1
APPEARS IN
RELATED QUESTIONS
Assuming complete dissociation, calculate the pH of the following solution:
0.002 M KOH
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 milk, black coffee, tomato juice, lemon juice and egg white are 6.8, 5.0, 4.2, 2.2 and 7.8 respectively. Calculate corresponding hydrogen ion concentration in each.
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 0.1M H2SO4 + 10 mL of 0.1M KOH
Derive the relation pH + pOH = 14.
When CuSO4 solution in water is treated with concentrated HCl it turns _______.
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]
The number of ions given by Na3[Fe(CN)6] in aqueous solution is ____________.
pH of a saturated solution of Ca(OH)2 is 9. The Solubility product (Ksp) of Ca(OH)2
The pH of an aqueous solution is Zero. The solution is ____________.
A lab assistant prepared a solution by adding a calculated quantity of HCl gas at 25°C to get a solution with [H3O+]= 4 × 10−5 M. Is the solution neutral (or) acidic (or) basic.
Calculate the pH of 0.04 M HNO3 solution.
Derive the relationship between pH and pOH.
Neutral solutions have the pH of ______.
A sample of air turns lime water milky and also turns acidified potassium dichromate green in aqueous solution has low pH. This is due to the presence of pollutants.
The degree of dissociation of 0.1 M monobasic acid is 0.4%. Its dissociation constant is ______.
Derive relationship between pH and pOH.
Derive relationship between pH and pOH.
Derive the relationship between pH and pOH.
Derive relationship between pH and pOH.
Define pOH.
Define pH.
Derive the relation pH + pOH = 14.
Define pH.
Derive the relation pH + pOH = 14.
Define the following term:
pOH
