What is the pH of distilled water?
Understand the Problem
The question is asking for the pH level of distilled water, which is a fundamental concept in chemistry related to acidity or alkalinity of a solution.
Answer
The pH of distilled water is 7, but it can be slightly acidic due to CO2 absorption.
The final answer is 7, but it may vary between 5.5 and 7 due to CO2 absorption from the air.
Answer for screen readers
The final answer is 7, but it may vary between 5.5 and 7 due to CO2 absorption from the air.
More Information
Pure distilled water is supposed to have a neutral pH of 7, but due to carbon dioxide absorption from the air, it often becomes slightly acidic, with a pH closer to 5.5.
Tips
A common mistake is to assume the pH remains constant at 7. Distilled water can absorb CO2, making it more acidic over time if left exposed to air.
Sources
- The Science Behind the pH of Distilled Water - Westlab Canada - westlab.com
- What Is the pH of Distilled Water? - Sciencing - sciencing.com
- pH of Distilled vs. Tap Water - Awesome Water Filters - awesomewaterfilters.com.au
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