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, Watch.ru. Apple Watch Series 10 iPhone 7Jet Black In Part B, a beaker and a graduated cylinder will be used to measure liquid volume in milliliters (mL). In Part C, an electronic balance will be used to measure mass in grams (g). Since all measuring devices are subject to some error, it is impossible to make exact measurements. Devise a way to obtain the desired information from measurement data. Accuracy. Precision. Resolution. Noise. The mass of an object weighed on a triple beam balance (precision 0.1g) is found to be 23.6 g. This quantity contains 3 significant figures, i.e., three experimentally meaningful digits. Significant figures are used to record or report measurements accurately. This laboratory activity will give you the opportunity to get more familiar with some of the basic measuring devices that are common in chemistry labs. You will use the measurements performed in this lab to calculate density. Data and Calculations: Show all work with units. Describe how to read a meniscus. Was this document helpful? Sig Figs & Mathematical Operations Complete the following operations and record your answer with the correct number of significant figures Apr 17, 2021 To perform metric to metric and English to metric conversions using dimensional analysis, reporting answers using correct number of significant figures and units. Sig figs -adding and subtracting, rounding; accuracy and precision Dimensional analysis unit conversions Chemical and physical properties Refresher video for my AP Chemistry students on Sig Figs, Dimensional Analysis and the Density equation. To measure the volume of liquid in a graduated cylinder, you should make a
reading at the bottom of the meniscus, the lowest point on the curved surface of the liquid. A short bridge between this measurement lesson and the next major lesson (significant figure rules) is called "From Measurement to Significance." You may wish to examine it before continuing on.