What kind of error would result if you read the liquid volume where the liquid touches the wall of the cylinder rather than at the meniscus?
2006-10-15 16:31:22 · 10 answers · asked by _cuteangel562_ 2 in Science & Mathematics ➔ Other - Science
The marks on a graduated cylinder are designed to give an accurate measurement if you measure at the meniscus for the specific fluid (like water) for which it was designed. If you don't measure there, you'll get the wrong reading. It will be too high or too low, depending on whether the liquid forms a positive or negative meniscus.
The meniscus is a consistent, well-defined level, and is easy to compare to the graduations on the cylinder. Exactly what level would you choose as the place where the liquid touches the wall?
What is the 'end' of an asymptotic curve?
2006-10-15 20:36:08 · answer #1 · answered by Frank N 7 · 0⤊ 0⤋
Great question. I'll bet that there is a common % error regardless of the diameter of the cylinder, but I don't know what that is. Still, a measurement made where the liquid touches the wall will always be greater than a measurement made at the meniscus. I think I'll ask my son to do this experiment in his chemistry class to see if there is a common percentage. Sounds like a fun project combining math and chemistry.
2006-10-15 23:44:08 · answer #2 · answered by OU812 5 · 0⤊ 0⤋
very good question. but is there a name for such an error...? the surface tension of the liquid at the sides of the cylinder also adds to the complexity?
2006-10-16 06:14:03 · answer #3 · answered by Dore 3 · 0⤊ 0⤋
You would read a slightly higher volume than what was actually present.
2006-10-15 23:34:15 · answer #4 · answered by juicy_wishun 6 · 1⤊ 0⤋
depends on the conditions in your lab air pressure humdity your eye sight but probably the incorrect amount of chemicals
2006-10-16 03:25:42 · answer #5 · answered by solemnpsycho 2 · 0⤊ 0⤋
The closest it can be defined should be a PARALLAX ERROR.
2006-10-16 08:44:33 · answer #6 · answered by Biologyfreakz 2 · 0⤊ 0⤋
the wrong reading and wrong measurements
2006-10-16 01:16:35 · answer #7 · answered by Arielle 2 · 0⤊ 0⤋
an improper balance of chemicals ?
2006-10-15 23:33:46 · answer #8 · answered by mel 3 · 0⤊ 1⤋
?? At what atmospheric pressure??
2006-10-15 23:39:50 · answer #9 · answered by Chris 4 · 0⤊ 0⤋
An "F" on your test?
2006-10-15 23:34:30 · answer #10 · answered by cell-hell 3 · 0⤊ 1⤋