Essay on chem pre lab marriah miranda chem 1411 february 4, 2015 precision and accuracy of scientific glassware pre-lab report the objective of this experiment is to learn which scientific glassware should be used in various circumstances, how to measure volume and mass and how to record laboratory data and observations. Accuracy and precision both relate to the quality of a measure however, the terms have separate meanings and should not be applied as an alternate for the other the meaning of accuracy is the extent to which a given measurement agrees with the standard value for that measurement.
1 convert the length and height measurements for the packet that contains the aluminum shot from units of cm to units of mm using the unit-factor method. Below is an essay on accuracy and precision from anti essays, your source for research papers, essays, and term paper examples lab 2 measurements: accuracy and precision. Precision and accuracy essay precision and accuracy essay submitted by himynaameis 2015 precision and accuracy of scientific glassware pre-lab report the objective of this experiment is to learn which scientific glassware should be used in various circumstances, how to measure volume and mass and how to record laboratory data and.
Measurements of 100009, 100008, and chem 0107 accuracy & precision essay a comparison of the accuracy and precision of a graduated cylinder and a pipet experimental materials part a a 50ml graduated cylinder a balance 500ml deionized water a rubber policeman part b a 100ml beaker a 50ml graduated cylinder a volumetric pipet 1200ml. Precision describes the closeness of results that have been obtained in exactly the same way while accuracy indicates the closeness of the measurement to its true value this experiment was used to determine the accuracy and precision of different volumetric measuring devices, as well as determining the density of an unknown metal. Measurements versus accuracy the fact that accuracy and precision are two independent entities makes a value termed as precise to be either true or false depending on the accuracy of the measurement scale therefore it is false to that a measurement of high precision must exhibit high accuracy let us find you another essay on topic.
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Free essay: experiment density, accuracy, precision and graphing objectives 1 the determination of the density of water 2 a comparison of the accuracy and home page writing essay about lab 1-measurement, length, mass, volume, density & time 1380 words | 6 pages.
Part b: accuracy and precision accuracy is determined by how close a measurement comes to an existing in this experiment, it can be observed that which one is more accurate with the comparison of the graduated cylinder and the volumetric pipet.
Accuracy and precision in measurements accuracy is the agreement between an experimental value, or the average of several determinations of the value, with an accepted or theoretical (“true”) value for a quantity. The accuracy of a measurement system is the degree of closeness of measurements from a standard or true value of the quantity being measured the precision of a measurement system, can be called repeatability or reproducibility, is the degree to which repeated measurements under the same conditions get the same results each time.