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  • The pH of rainwater is found to be 5.6. What is the concentration of ions in the rainwater?Option: 1 <img alt="2.5 \times 10 ^{-6}M" src="h

The pH of rainwater is found to be 5.6. What is the concentration of ions in the rainwater?

Option: 1

2.5 \times 10 ^{-6}M


Option: 2

3.5 \times 10^{-6}M


Option: 3

4.5 \times 10^{-6} M


Option: 4

5.5 \times 10^{-6} M


Answers (1)

best_answer

The pH of a solution is defined as the negative logarithm of the concentration of hydrogen ions, or H^+ ions, present in the solution. The formula to calculate pH is:

pH =-log[H+]

We are given the pH of rainwater as 5.6. We can rearrange the above equation to solve for [H^+]:

[H+] = 10^{-pH}

[H+] = 10^{-5.6}

[H+] = 2.5 \times 10^{-6} M
Therefore, the concentration of H^+ ions in the rainwater is 2.5 \times 10^{-6} M. Therefore, the correct option is (1) 2.5 \times 10^{-6} M

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avinash.dongre

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