What are some sources of error in colorimetry lab?

Answer 1

boiling chips are not added to the distillation flask.

the thermometer bulb is placed in the boiling liquid.

the water to the water-jacketed condenser is not turned on.

Answer 2

The primary source of error in taking a temperature reading is the thermometer, itself, and reading it properly. Standard, school-use thermometers are not precision instruments, and even very precise ones need to be calibrated occasionally. Even if your thermometer is accurate to within one percent of the reading, a measurement of 100 degrees has an uncertainty of plus or minus one degree, meaning that the actual temperature may be anywhere between 99 and 101 degrees. Further, many instruments have a fixed error, which means they are less accurate at lower readings. Confounding matters is the error introduced by the person reading the instrument. Impurities in the sample -- either ones that were there to begin with or were introduced into the sample by contamination from the lab equipment -- can affect the boiling point of the substance being tested.

Answer 3

Distillation refers to the process of purifying a liquid through heating and cooling. Some sources of errors in boiling point-distillation are impurities and improper positioning of the thermometer.

Answer 4

3 main sources of error would be first that the cup is not closed and therefore a lot of the heat would not be kept in the cup. Also the pellets could have been either too hot or too cold when they were placed in the cup.

Answer 5

Examples: weighing error, volumes error, operators error, calculus error, presence of impurities, inadequate conditions of work, lack of standards, instrumente error, contamination of sample etc.

Answer 6

The main sources of error in a solubility curve are based on the formation of crystals. The position of the thermometer in the beaker may be another source of error.

Answer 7

It depends on how many hoddogs you occupy. Also, the Girgobidiga factor also may vary the results

Answer 8

if you dont cover your solution with the cap on the colorimeter, your results will be way off as your solution is exposed to much more light than it should be exposed to.

Answer 9

decreasing or increasing of presure