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Worked Examples Follows:

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CRS Questions Follow:

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The pH values for solutions with H3O+ concentrations of 1.0x10-1, 1.0x10-4, and 1.0x10-9 are, (no calculators)

1. 14.0, 12.0, 9.0

2. 13.0, 9.0, 5.0

4. 1.00, 4.00, 9.00

3. 13.00, 9.00, 5.00

5. 1.0, 4.0, 9.0

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The pH values for solutions with H3O+ concentrations of 1.0x10-1, 1.0x10-4, and 1.0x10-9 are, (no calculators)

1. 14.0, 12.0, 9.0

2. 13.0, 9.0, 5.0

4. 1.00, 4.00, 9.00

3. 13.00, 9.00, 5.00

5. 1.0, 4.0, 9.0

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Which of the following is closest to the concentration of H3O+ for the solution depicted to the right (pH=8.98). Do not use a calculator.

1. 109 M

3. 108 M

2. 108.98 M

4. 10-8 M

5. 10-9 M

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Which of the following is closest to the concentration of H3O+ for the solution depicted to the right (pH=8.98). Do not use a calculator.

1. 109 M

3. 108 M

2. 108.98 M

4. 10-8 M

5. 10-9 M