L07 Chem 111A Study Guide - Comprehensive Final Exam Guide - Wavelength, Wave Function, Integer
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Significant figures are the digits used to represent the precision of a measured or calculated quantity. Below is a summary of the rules for significant figures, which will be used in chem 111a. For additional information, please read pages a. 5-a. 7 in the back of your textbook (oxtoby, gillis & campion, 7th edition). Rules: for addition or subtraction, the answer should contain the same number of decimal places as the term with the fewest decimal places. 5. 6 number with fewest digits after the decimal. 199. 0844 199. 1 (1 digit to the right of the decimal: for multiplication or division, the answer should contain no more significant figures than the term with the fewest significant figures. 152. 06 x 0. 24 = 36. 49 36 (2 significant digits) If the 5 is followed by one or more non-zero digits, round up: significant figures. How many significant figures are there in the following numbers: 12. 3456. Answer: 6 significant figures (all the digits are significant. : 0. 005030.
