What is the difference between precise and accurate in chemistry

It gives the closeness of data in a dataset. Moreover, it is independent of accuracy. Accuracy and precision are independent of each other. The difference between accuracy and precision in chemistry is that accuracy reflects how close a measurement to an accepted value or a known value whereas precision reflects how reproducible the measurements are.

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Your email address will not be published. What is Accuracy? What is Precision? What is the difference between Accuracy and Precision? Example of the difference between Accuracy and Precision… The example of a darts board is often used when talking about the difference between accuracy and precision. How can Precisa help you with your Precision Measurements? At Precisa, ensuring the precision of your measurements is our top priority.

The figure above demonstrates four possible outcomes: The darts have landed far from each other and far from the bulls-eye. This grouping demonstrates measurements that are neither accurate nor precise. The darts are close to one another, but far from the bulls-eye.

This grouping demonstrates measurements that are precise, but not accurate. In a laboratory situation, high precision with low accuracy often results from a systematic error.

Either the measurer makes the same mistake repeatedly, or the measuring tool is somehow flawed. A poorly calibrated balance may give the same mass reading every time, but it will be far from the true mass of the object.

The darts are not grouped very near to each other, but are generally centered around the bulls-eye. This demonstrates poor precision, but fairly high accuracy. This situation is not desirable in a lab situation because the "high" accuracy may simply be random chance and not a true indicator of good measuring skill.