What is the uncertainty of an Erlenmeyer flask?
03. Uncertainty for Volumetric Glassware
| Glassware | Volume in mL | ± Uncertainty in mL |
|---|---|---|
| Volumetric flasks | 50.00 100.00 250.0 | 0.05 0.08 0.10 |
| Buret | 50.00 100.00 | 0.05 0.10 |
| Erlenmeyer flasks | 100 250 | 5 10 |
| Beaker | 50 100 | 5 5 |
What is the uncertainty of a measurement using a 100 mL graduated cylinder?
+0.1mL
Making a measurement A 100-ml graduated cylinder with 1-ml graduation will have an uncertainty of +0.1mL.
What is the uncertainty of a 100 mL volumetric flask?
Uncertainties for Volumetric Glassware
| Item | Volume (mL) | Uncertainty (mL) |
|---|---|---|
| Volumetric flask | 1000.0 | ±0.30 |
| 500.0 | ±0.15 | |
| 250.0 | ±0.12 | |
| 100.00 | ±0.08 |
What is the accuracy of the 100 mL volumetric flask?
0.2 mL
volume 100 mL, accuracy: 0.2 mL.
What is the uncertainty of 10 mL pipette?
A 10-ml pipet is listed as 10.00 0.02, which is close enough to 4 significant figures, 10.00 ml.
What is the precision of a 100 mL graduated cylinder?
± 1.0 ml
This graduated cylinder has a capacity of 100 ml with graduations marked every 1.0 ml and it has an accuracy of ± 1.0 ml at 20°C. Approximately 25 cm tall and 3 cm in diameter.
What is the precision of a 100 mL beaker?
They are manufactured to contain the measured volume with an error of 0.5 to 1%. For a 100 mL graduated cylinder, this would be an error of 0.5 to 1.0 mL.
What is the uncertainty of a volumetric flask?
According to the manufacturer certificate, the uncertainty of measurement of the volumetric flask is stated as 500.0 mL ± 0.12 mL, at a temperature of 20 ˚C, without any information regarding the level of confidence or distribution.
How do you reduce uncertainty?
For example, one way to estimate the amount of time it takes something to happen is to simply time it once with a stopwatch. You can decrease the uncertainty in this estimate by making this same measurement multiple times and taking the average.
How do you calculate uncertainty in addition?
Rule 1. If you are adding or subtracting two uncertain numbers, then the numerical uncertainty of the sum or difference is the sum of the numerical uncertainties of the two numbers. For example, if A = 3.4± . 5 m and B = 6.3± . 2 m, then A+B = 9.7± .