What is the uncertainty of a 50 ml glass gas measuring tube?

Answer 1

0.001 :D

Answer 2

The uncertainty of a 50 ml glass gas measuring tube would depend on the precision of the markings on the tube. If the tube is graduated in milliliters with marks at every 1 ml, the uncertainty would be ±0.5 ml. If the marks are at every 0.5 ml, the uncertainty would be ±0.25 ml.

Answer 3

It depends on the tube's construction. Assuming a graduation every one millimetre, a 50 mm high tube can measure to +/- 0.5 ml accuracy. A 200 mm high (very thin!) tube, also with one mm graduations, is four times as accurate.

You need to state the smallest actual graduation to get your answer, and be aware that the liquid's meniscus affects reading confidence.

Answer 4

25 mL