Science (English Medium) इयत्ता ११ - CBSE Question Bank Solutions for Chemistry

Assuming complete dissociation, calculate the pH of the following solution:

0.005 M NaOH 

Assuming complete dissociation, calculate the pH of the following solution:

0.002 M HBr

Assuming complete dissociation, calculate the pH of the following solution:

0.002 M KOH

Calculate the pH of the following solution: 

2 g of TlOH dissolved in water to give 2 litre of solution.

Calculate the pH of the following solutions:

0.3 g of Ca(OH)₂ dissolved in water to give 500 mL of solution.

Calculate the pH of the following solution:  

0.3 g of NaOH dissolved in water to give 200 mL of solution.

Calculate the pH of the following solution:

1mL of 13.6 M HCl is diluted with water to give 1 litre of solution.

The degree of ionization of a 0.1M bromoacetic acid solution is 0.132. Calculate the pH of the solution and the pK_a of bromoacetic acid.

The pH of 0.005M codeine (C₁₈H₂₁NO₃) solution is 9.95. Calculate its ionization constant and pK_b.

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.

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?

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 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.

Calculate the pH of the resultant mixtures: 10 mL of 0.2M Ca(OH)₂ + 25 mL of 0.1M HCl.

Calculate the pH of the resultant mixtures: 10 mL of 0.01M H₂SO₄ + 10 mL of 0.01M Ca(OH)₂.

Calculate the pH of the resultant mixtures: 10 mL of 0.1M H₂SO₄ + 10 mL of 0.1M KOH

Show the distribution of electrons in oxygen atom (atomic number 8) using orbital diagram.

Acidity of \[\ce{BF3}\] can be explained on the basis of which of the following concepts?

In which of the following solvents is silver chloride most soluble?

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?