Calculate the concentration of an aqueous HNO3 solution that has a pH=5.08.
pH = 5.08. Convert that to (H^+). Since HNO3 is a strong acid and it is 100% ionized, (H^+) = (HNO3).
To calculate the concentration of the HNO3 solution, we can use the formula:
pH = -log[H+]
Since HNO3 is a strong acid and completely ionizes in water, the concentration of (H+), which is the same as the concentration of HNO3, can be calculated directly from the pH value.
In this case, the pH is given as 5.08. We can use the equation to find the concentration of (H+):
5.08 = -log[H+]
To get rid of the negative sign, we can rearrange the equation:
[H+] = 10^(-pH)
Now, plug in the given pH value:
[H+] = 10^(-5.08)
Using a calculator, we can find that [H+] is approximately 7.8 x 10^(-6) M.
Therefore, the concentration of the aqueous HNO3 solution is approximately 7.8 x 10^(-6) M.