

Crash Course: Instrument Labs in a Weekend Practice Test 202
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✨ Magical Challenges ✨
Can you solve these mystery puzzles?
When calibrating a pipette, which factor is LEAST likely to introduce significant error if not controlled for in a standard laboratory environment?
A researcher needs to prepare a 1 mM solution from a 100 mM stock solution using a series of 1:10 dilutions. If the smallest volume their pipette can accurately dispense is 2 µL, what is the minimum final volume they can practically prepare?
You are using a standard bench-top pH meter to measure the pH of a weakly buffered solution. Which action is most critical for obtaining a stable and accurate reading?
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