What Factors Determine The Accuracy Of A Measurement?

Question

it's for my chemistry lab and I don't know the answer!!!!!!!

Answer 1

if u have got to read the measurement, one important factor is how u look at it. Take for instance a buret, if u look at the reading at a slanting angle, or at different angles, u get different readings. No.2 is the accuracy of the measuring equipment. No.3 is environmental factors such as wind, speed, light intensity, humidity..... and lastly, i think, is the process u do it, whether it is properly controlled or just simply done

Answer 2

Instrument accuracy is the difference between the observed average value of the measurements taken and the "master" or "true" value. The difference between the "true" value and the average measured values is called a bias. Bias can be effected by operators (e.g different operators get different average measurements) or instrument bias (different instruments get different averages). Precision is the measure of natural variation of repated measurments. Repeatability and reproducibility contribute to precision. Repeatablity is the varation between successive measurements of the same part, same characteristic (length, concentration, etc.) by the same person using the same instrument. Reproducibility is the variation that results from different conditions (e.g. different operators, different samples, different environmental conditions (cool in the morning, hot in the afternoon).

Answer 3

The accuracy of the measurement device

Answer 4

The accuracy of a measurement depends on
1. the method or procedure for the measurement
2. the apparatus or equipments like glasswares, weighing balance
3.interferences of the test metods
4.environment and specific conditions of the method

Answer 5

whether or not you can read an instrument correctly, and the degree of precision of your measurements.

Answer 6

how close it is to the correct measurement.