What is the pH of neutral water at 40 °C? [H3O+] = [OH-] = 1.71 x 10-7 M pH = -log[H3O+] pH = [?]

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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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## Understanding Neutral Water pH at 40°C

### Problem Statement:
What is the pH of neutral water at 40°C?

### Given Data:
\[ [H_3O^+] = [OH^-] = 1.71 \times 10^{-7} \, M \]

### Formula to Use:
\[ \text{pH} = -\log [H_3O^+] \]

### Calculation:
\[ \text{pH} = \, ? \]

### Instructions:
- Your answer should have **three digits AFTER the decimal point**.

### Input Your Answer Below:
- **pH**: [ ]

### Notes:
- To find the pH of neutral water at the given temperature, use the provided hydronium ion concentration.
- The logarithmic function will give you the pH value directly.
- Ensure your final answer respects the stipulated precision (three digits after the decimal point).

### Submit Answer:
- Click **Enter** after inputting your calculated pH value.
Transcribed Image Text:## Understanding Neutral Water pH at 40°C ### Problem Statement: What is the pH of neutral water at 40°C? ### Given Data: \[ [H_3O^+] = [OH^-] = 1.71 \times 10^{-7} \, M \] ### Formula to Use: \[ \text{pH} = -\log [H_3O^+] \] ### Calculation: \[ \text{pH} = \, ? \] ### Instructions: - Your answer should have **three digits AFTER the decimal point**. ### Input Your Answer Below: - **pH**: [ ] ### Notes: - To find the pH of neutral water at the given temperature, use the provided hydronium ion concentration. - The logarithmic function will give you the pH value directly. - Ensure your final answer respects the stipulated precision (three digits after the decimal point). ### Submit Answer: - Click **Enter** after inputting your calculated pH value.
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