Significant Figures 1. How many significant figures are contained in each of the following numbers? 7809700.897...
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Significant Figures 1. How many significant figures are contained in each of the following numbers? 7809700.897 tons 94700. m 28.2890 cm 347600 L 0.07890 pints 120 atoms Rounding 2. Round each of the following to the indicated number of significant figures. 561.220 ft. rounded off to 3 significant figures is 0.0023745 kg rounded off to 4 significant figures is 84728.33 J rounded off to 3 significant figure is 39.981 mm rounded off to 2 significant figures is Answer Significant Figures in Calculations 1. Perform the following calculations, rounding off the answer to the correct number of significant figures. (a) 947.3 + 32.5 + 1030.0 = (b) 947.3 + 32.5 + 1030. = (c) 947.3 + 32.5+ 1030 = 2. Perform the following calculations, rounding off the answer to the correct number of significant figures. Note: Time to learn how to do scientific notation on your calculator! EE (or EXP) stands for "x 10". Do not press the times key or enter 10, in addition to EE (or EXP). You may want to ask one of the instructors for help on how to do this on your calculator (each calculator is slightly different). Example: written number: 3.77x10 (a) (b) (c) 950 0.36845 (5.632x106) (1.9472x10²) (9.3x107)(5.94×105) (7.20x105) (9.395×10-³) (9.159x10-13) (7.3018×10¹) 3. Complete the following table. Measurement 739500 cm 0.0008240 in. calculator display: 3.77E-4 *your calculator may be different! Consult your instructor Scientific Notation Number of Significant Figures Number in Scientific Notation 3.289 x 10 L 7.300 x 10³ μg Significant Figures 1. How many significant figures are contained in each of the following numbers? 7809700.897 tons 94700. m 28.2890 cm 347600 L 0.07890 pints 120 atoms Rounding 2. Round each of the following to the indicated number of significant figures. 561.220 ft. rounded off to 3 significant figures is 0.0023745 kg rounded off to 4 significant figures is 84728.33 J rounded off to 3 significant figure is 39.981 mm rounded off to 2 significant figures is Answer Significant Figures in Calculations 1. Perform the following calculations, rounding off the answer to the correct number of significant figures. (a) 947.3 + 32.5 + 1030.0 = (b) 947.3 + 32.5 + 1030. = (c) 947.3 + 32.5+ 1030 = 2. Perform the following calculations, rounding off the answer to the correct number of significant figures. Note: Time to learn how to do scientific notation on your calculator! EE (or EXP) stands for "x 10". Do not press the times key or enter 10, in addition to EE (or EXP). You may want to ask one of the instructors for help on how to do this on your calculator (each calculator is slightly different). Example: written number: 3.77x10 (a) (b) (c) 950 0.36845 (5.632x106) (1.9472x10²) (9.3x107)(5.94×105) (7.20x105) (9.395×10-³) (9.159x10-13) (7.3018×10¹) 3. Complete the following table. Measurement 739500 cm 0.0008240 in. calculator display: 3.77E-4 *your calculator may be different! Consult your instructor Scientific Notation Number of Significant Figures Number in Scientific Notation 3.289 x 10 L 7.300 x 10³ μg
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