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Lab Purpose: Determine the concentration of fluoride in mouthwash or toothpaste using an ion selective electrode...

Lab Purpose: Determine the concentration of fluoride in mouthwash or toothpaste using an ion selective electrode (ISE) will be used to determine the concentration of F- in a sample of mouthwash or toothpaste. Demonstrate Nernstian electrode response.

1. What is the most common type of ion selective electrode?

2. Why do reactions that remove ions from solution interfere with the operation of an ISE?

3. Why should the data for the calibration plot and unknown values be obtained on the same day?

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queen_honey_blossom answered 2 years ago
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