Final answer:
To determine the calibration of an Erlenmeyer flask, look for graduation marks or volume labels on the flask, which are not provided in the provided visual descriptions.
Step-by-step explanation:
To tell the calibration of an Erlenmeyer flask from a picture, you would typically look for the graduation marks along the side of the flask. These marks indicate the volume of liquid the flask is designed to hold at specific intervals. Unfortunately, you cannot determine the calibration of an Erlenmeyer flask from descriptions of pictures that do not mention calibration marks or actual volume measurements. For instance, references to experiments with acid, copper penny, pistons, vapors, coffee cup calorimeters, or micropipettes do not provide information about calibration. Without a clear visual on the graduations or a label specifying the volume, it is impossible to determine an Erlenmeyer flask's calibration from a picture. It is essential to either have the calibration information provided or a clear view of the graduations on the flask in a photo to determine the volume measurements it is calibrated for.