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# Acid rain (see Chemistry in the Environment box in Section 5.9) over the Great Lakes has ISBN: 9780321910295 34

## Solution for problem 119P Chapter 14

Introductory Chemistry | 5th Edition

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Problem 119P

Acid rain (see Chemistry in the Environment box in Section 5.9) over the Great Lakes has a pH of about 4.5. Calculate the [H30+] of this rain and compare that value to the [H30+] of rain over the West Coast that has a pH of 5.4. How many times more concentrated is the acid in rain over the Great Lakes?

Step-by-Step Solution:
Step 1 of 3

Solution: Here, we are going to calculate the concentration of hydronium ion of rain over the Great Lakes and compare it with that over the West Coast.

Step1:

pH is the negative logarithm to base 10 of hydrogen ion concentration.

pH = - log[H3O+ ]

Step2:

Given, pH of the acid rain over the Great Lakes = 4.5

pH =  - log[H3O+]

Therefore, [H3O+] = 10-pH

= 10-4.5

= 3.16 x 10-5

Again, pH of the rain over the West Coast = 5.4

pH =  - log[H3O+]

Therefore, [H3O+] = 10-pH

= 10-5.4

= 3.98 x 10-6

Step3:

Thus, the concentration of hydronium ion is higher in the acid rain over the Great Lakes.

Now, [H3O+] over Great Lakes / [H3O+] over the West Coast = (3.16 x 10-5) / (3.98 x 10-6)

= 7.93

= 8 (approx.)

Thus, the acid in rain over the Great Lakes is approximately 8 times more concentrated.

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Step 2 of 3

Step 3 of 3

##### ISBN: 9780321910295

This full solution covers the following key subjects: rain, lakes, acid, great, Environment. This expansive textbook survival guide covers 19 chapters, and 2046 solutions. Introductory Chemistry was written by and is associated to the ISBN: 9780321910295. This textbook survival guide was created for the textbook: Introductory Chemistry, edition: 5. The answer to “Acid rain (see Chemistry in the Environment box in Section 5.9) over the Great Lakes has a pH of about 4.5. Calculate the [H30+] of this rain and compare that value to the [H30+] of rain over the West Coast that has a pH of 5.4. How many times more concentrated is the acid in rain over the Great Lakes?” is broken down into a number of easy to follow steps, and 60 words. The full step-by-step solution to problem: 119P from chapter: 14 was answered by , our top Chemistry solution expert on 05/06/17, 06:45PM. Since the solution to 119P from 14 chapter was answered, more than 364 students have viewed the full step-by-step answer.

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Acid rain (see Chemistry in the Environment box in Section 5.9) over the Great Lakes has