What could the student use to measure the pH of pure water?
Question
What could the student use to measure the pH of pure water?
Solution
The student could use a pH meter to measure the pH of pure water. Here are the steps:
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Calibration of pH meter: Before using the pH meter, it needs to be calibrated to ensure accurate readings. This is usually done using buffer solutions of known pH values.
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Preparation of the sample: The water to be tested should be at room temperature. If it's not, allow it to sit until it reaches room temperature.
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Measurement: Rinse the electrode of the pH meter with distilled water and then immerse it into the water sample. Wait for the reading to stabilize before recording the pH value.
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Cleaning: After the measurement, rinse the electrode with distilled water and dry it before storing.
Alternatively, the student could also use pH test strips or universal indicator solution, which changes color based on the pH of the solution it is added to. However, these methods are less accurate than using a pH meter.
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