How to Dilute Nitric Acid Solution and Determine Final Concentration and pH
How do you determine the final concentration of nitric acid in the dilute solution?
What is the final pH of the solution?
Final answer:
The final concentration of nitric acid in the dilute solution is approximately 0.093M. The pH of the final solution is approximately 1.03.
When you need to dilute a strong acid solution like nitric acid, you can use the formula C1V1 = C2V2. In this case, you diluted 15.5mL of a 12.0M nitric acid solution to 25.00L with water. By plugging in the values, you find that the final concentration of nitric acid in the dilute solution is approximately 0.093M.
Calculating the pH of the final solution is also straightforward. Since nitric acid is a strong acid and ionizes completely in water, the concentration of H+ ions in the solution is equal to the concentration of the nitric acid. By using the final concentration of nitric acid (0.093M) in the pH formula, you find that the pH of the final solution is approximately 1.03.
So, the next time you need to dilute a strong acid solution, remember to use the dilution formula to determine the final concentration and pH of the solution!