What is the pH of 0.001 mol dm4 solution of sodium hydroxide?
Answer Details
The pH of a solution of sodium hydroxide (NaOH) is a measure of its acidity or basicity. The pH scale ranges from 0 to 14, with 7 being neutral, less than 7 being acidic, and greater than 7 being basic.
A 0.001 mol/dm^3 solution of NaOH is a very dilute solution, but it is still basic. NaOH is a strong base and dissociates completely in water to form hydroxide ions (OH-), which are responsible for its basicity.
The pH of a basic solution can be calculated using the equation:
pH = -log[OH^-]
where [OH^-] is the concentration of hydroxide ions in the solution.
In this case, the concentration of hydroxide ions is equal to the concentration of the NaOH solution, which is 0.001 mol/dm^3. So,
pH = -log(0.001) = 3
Therefore, the pH of a 0.001 mol/dm^3 solution of sodium hydroxide is 11.