The pH of a sample of vinegar is 3.76. Calculate the concentration of hydrogen ions in it.

A cell contains two hydrogen electrodes. The negative electrode is in contact with a solution of 10^-6 M hydrogen ions. The emf of the cell is 0.118V at 25^@C . Calculate the concentration of hydrogen ions at the positive electrode.

The pH of black coffee is 5.0. Calculate the hydrogen ion concentration.

It has been found thet pH of 0.01 M solution of an organic acid is 4.15. Calculate the concentration of the anion, the ionisation constant of the acid and its pKa.

Calculate the volume of 20 g of hydrogen gas at NTP.

The ph value of a solution determines whether it is acidic, basic or neutral in nature.the concentration of hydrogen ion in the sample of a soft drink is 3.8xx10^-3 mol/l. calculate its pH. Also predict whether the above solution is acidic, basic or neutral.

The ionization constant of acetic acid is 1.74 x 10^(-5) .Calculate the degree of dissociations of acetic acid in its '0.05 M' solution. Calculate the concentration of acetate ion in the solution.

The solubility of Sr (OH)_2 at 298 K is 19.23g/L of solution. Calculate the concentration of strontium and hydroxyl ions. What is its pH? (Atomic mass of Sr=87.6)

If 0.561 g of KOH is dissolved in water to give 200 mL of solution at 298K, calculate the concentrations of potassium, hydrogen and hydroxyl ions. What is its pH?

The 'pH'.of a tomato juice is '4.4'. Calculate '[H_3 O^+]'

Calulate the hydronium ion concentration of a solution whose pH is 4.4.