Each row of the table below describes an aqueous solution at about 25 °C. Complete the table. That is, fill in any missing entries in the second and third columns. Be sure each entry you write includes the correct number of significant digits. [1,0'] solution pH 0.19 mol/L A I mol/L 6.35 B - 10 mol/L 7.9 x 10

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**Understanding pH and Hydronium Ion Concentration in Aqueous Solutions**

Each row of the table below describes an aqueous solution at about 25 °C.

Complete the table. That is, fill in any missing entries in the second and third columns. Be sure each entry you write includes the correct number of significant digits.

| Solution | [H₃O⁺] (mol/L) | pH   |
|----------|------------------|------|
| A        | 0.19             |      |
| B        |                  | 6.35 |
| C        | 7.9 x 10⁻¹⁰      |      |

To calculate the missing entries, you can use the following principles:

1. **Relationship Between [H₃O⁺] and pH**:
   \[
   \text{pH} = -\log[\text{H₃O⁺}]
   \]
   \[
   [\text{H₃O⁺}] = 10^{-\text{pH}}
   \]

2. **Steps for Calculations**:
   - For **Solution A**:
     \[
     \text{pH} = -\log(0.19)
     \]
     Calculate this value to find the pH.

   - For **Solution B**:
     \[
     [\text{H₃O⁺}] = 10^{-6.35}
     \]
     Convert this value to find [H₃O⁺] in mol/L.

   - For **Solution C**:
     \[
     \text{pH} = -\log(7.9 \times 10^{-10})
     \]
     Calculate this value to find the pH.

By completing these calculations, you will be able to fill in the missing entries and understand the relationship between hydronium ion concentration and pH in these aqueous solutions.
Transcribed Image Text:**Understanding pH and Hydronium Ion Concentration in Aqueous Solutions** Each row of the table below describes an aqueous solution at about 25 °C. Complete the table. That is, fill in any missing entries in the second and third columns. Be sure each entry you write includes the correct number of significant digits. | Solution | [H₃O⁺] (mol/L) | pH | |----------|------------------|------| | A | 0.19 | | | B | | 6.35 | | C | 7.9 x 10⁻¹⁰ | | To calculate the missing entries, you can use the following principles: 1. **Relationship Between [H₃O⁺] and pH**: \[ \text{pH} = -\log[\text{H₃O⁺}] \] \[ [\text{H₃O⁺}] = 10^{-\text{pH}} \] 2. **Steps for Calculations**: - For **Solution A**: \[ \text{pH} = -\log(0.19) \] Calculate this value to find the pH. - For **Solution B**: \[ [\text{H₃O⁺}] = 10^{-6.35} \] Convert this value to find [H₃O⁺] in mol/L. - For **Solution C**: \[ \text{pH} = -\log(7.9 \times 10^{-10}) \] Calculate this value to find the pH. By completing these calculations, you will be able to fill in the missing entries and understand the relationship between hydronium ion concentration and pH in these aqueous solutions.
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