Question: During the experiment, when are you instructed to calibrate (zero) the spectrophotometer? Group of answer choices When the spectrophotometer has no cuvette inserted After finishing

During the experiment, when are you instructed to calibrate (zero) the spectrophotometer?

Group of answer choices

When the spectrophotometer has no cuvette inserted

After finishing measurements for one solution but before mixing the next solution

After inserting the cuvette containing the analyte

Every 6 minutes

At the start of the experiment

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