10^-5 M NaoH solution at 25*c is diluted 1000 times. The pH of resulti...
**Dilution of a Solution**
Dilution refers to the process of reducing the concentration of a solute in a solution by adding more solvent. In this case, we have a 10^-5 M NaOH solution that is going to be diluted 1000 times. Let's determine the resulting pH of the diluted solution.
**pH of a Solution**
pH is a measure of the acidity or alkalinity of a solution, ranging from 0 to 14. A pH of 7 is considered neutral, pH values below 7 indicate acidity, and pH values above 7 indicate alkalinity. pH is calculated using the negative logarithm of the hydrogen ion concentration (H+).
**Calculating the pH of the Solution**
To calculate the pH of the diluted NaOH solution, we need to consider the following steps:
1. Determine the initial concentration of the NaOH solution: The initial concentration is given as 10^-5 M. This means that for every liter of solution, there are 10^-5 moles of NaOH.
2. Calculate the concentration of the diluted solution: Since the solution is being diluted 1000 times, the resulting concentration will be 10^-5 M / 1000 = 10^-8 M.
3. Determine the hydroxide ion concentration: Since NaOH is a strong base, it dissociates completely in water to form Na+ and OH- ions. Therefore, the hydroxide ion concentration will be equal to the concentration of the NaOH solution.
4. Calculate the pOH of the diluted solution: pOH is the negative logarithm of the hydroxide ion concentration. In this case, pOH = -log(10^-8) = 8.
5. Calculate the pH of the diluted solution: Since pH + pOH = 14 (at 25°C), the pH of the diluted solution will be 14 - 8 = 6.
Therefore, the resulting pH of the diluted 10^-5 M NaOH solution after dilution 1000 times will be 6.
**Summary**
- The initial concentration of the NaOH solution is 10^-5 M.
- The diluted solution will have a concentration of 10^-8 M.
- The hydroxide ion concentration is equal to the concentration of the NaOH solution.
- The pOH of the diluted solution is 8.
- The pH of the diluted solution is 14 - 8 = 6.
10^-5 M NaoH solution at 25*c is diluted 1000 times. The pH of resulti...
Lie b/n 7& 8