NEETChemistryIonic Equilibrium
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?
Options
- A[K + ] = 0.05 M, [H + ] = 0.01 M, [OH - ] = 0.01 M, pH = 12.00
- B[K + ] = 0.02 M, [H + ] = 0.00 M, [OH - ] = 0.02 M, pH = 1.70
- C[K + ] = 0.01 M, [H + ] = 0.00 M, [OH - ] = 0.02 M, pH = 2.00
- D[K + ] = 0.02 M, [H + ] = 0.01 M, [OH - ] = 0.01 M, pH = 2.00
Correct answer
A. [K + ] = 0.05 M, [H + ] = 0.01 M, [OH - ] = 0.01 M, pH = 12.00
Step-by-step solution
Correct Option is : (A) [K + ] = 0.05 M, [H + ] = 0.01 M, [OH - ] = 0.01 M, pH = 12.00