What is the acid concentration of a sample of acid rain with a pH of 4.20?
The question is –
What is the acid concentration of a sample of acid rain with a pH of 4.20?
Answer:
⇒ The acid concentration of a sample of acid rain with a pH of 4.20 is 6.31 x 10-5 M.
Explanation:
We’re given that the pH of a sample of acid rain is 4.20, and we need to find the acid concentration.
The pH of a solution is defined as the negative logarithm (base 10) of the hydrogen ion (H+) concentration, expressed in moles per liter (M).
In mathematical terms, pH = -log[H+], where [H+] is the molar concentration of hydrogen ions in the solution.
We can rearrange this formula to solve for [H+]:
⇒ [H+] = 10-pH.
We’re given that the pH is 4.20. Substituting this into our rearranged formula gives us the –
⇒ [H+] = 10-4.20
∴ By solving this, we get, [H+] = 6.31 x 10-5 M.
Therefore, the acid concentration of a sample of acid rain with a pH of 4.20 is 6.31 x 10-5 M.
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