Analysis

ANALYSIS:

Chemical analysis is used to determine either the identity or the quantity of a species in a sample.

Gravimetric analysis

Gravimetric analysis involves determining the amount of material present by weighing the sample before and/or after some transformation. A common example used in undergraduate education is the determination of the amount of water in a hydrate by heating the sample to remove the water such that the difference in weight is due to the loss of water.

Volumetric analysis

Titration involves the addition of a reactant to a solution being analyzed until some equivalence point is reached. Often the amount of material in the solution being analyzed may be determined. Most familiar to those who have taken chemistry during secondary education is the acid-base titration involving a color changing indicator. There are many other types of titrations, for example potentiometric titrations. These titrations may use different types of indicators to reach some equivalence point.

ACCURACY: In the fields of science, engineering, industry, and statistics, the accuracy[1]of a measurement system is the degree of closeness of measurements of aquantity to that quantity's actual (true) value. OR Accuracy is how close a measured value is to the actual (true) value. OR Accuracy is the degree of conformity of a measured or calculated quantity to its actual (true) value.

PRECISION: The precision[1] of a measurement system, also called reproducibility or repeatability, is the degree to which repeated measurements under unchanged conditions show the sameresults.[2] Although the two words reproducibility and repeatability can besynonymous in colloquial use, they are deliberately contrasted in the context of the scientific method. OR Precision is how close the measured values are to each other. OR precision is the degree to which further measurements or calculations show the same or similar results. In other words, the precision of an experiment/object/value...