1. what is the formula for calculating % relative tolerance for volumetric flask

Question

1. what is the formula for calculating % relative tolerance for volumetric flask

2. For optimal accuracy, do you recommend using smaller or larger sized volumetric flasks. How did you come up with your decision?

3. Brainstorm a list of experimental circumstances under which it would be advantageous to choose a smaller volumetric flask over a larger volumetric flask.

4. What is the % relative tolerance formula for reusable volumetric pipets, class A?

5. True or False: Volumetric glassware with the lowest tolerance will yield the most accurate measurement. Explain your rationale.

6. Given the following Data, rank the students according to accuracy, and then according to precision.

Measurements...Volume mL delivered by a 25 mL volumetric pipet:

Student Jamie: Trial 1 = 24.94, Trial 2 = 24.88, Trial 3 = 24.81

Student Kerry: Trial 1 = 24.83, Trial 2 = 24.97, Trial 3 = 24.88

Student Lorne: Trial 1 = 25.15, Trial 2 = 24.88, Trial 3 = 25.07

Student Ming: Trial 1 = 25.10, Trial 2 = 25.02, Trial 3 = 25.12

Explanation / Answer

It says a grade B 250ml volumetric flask has an accuracy of

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