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This is for a calibration lab for analytical chemistry. Can someone please explain how to report...

This is for a calibration lab for analytical chemistry. Can someone please explain how to report the uncertainty of the electronic balance that I used in lab for my lab results. We used a measuring pipette to weigh out 2 ml, 4ml, 6ml, etc. of water into a weigh bottle. Three replicate weights were recorded for each measurement. I was told to do a minimum of 3 weight measurements for the weigh bottle alone to calculate the uncertainty of the balance, but don't know what to do with those measurements. (Listed below) The room's temperature was 21.9 +/- 0.5 C (I think this is needed to determine density?)

Empty weigh bottle measurements:

24.1039g

24.1043g

24.1034g

Let me know if there is any more information I need to provide. Thanks!

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