How many significant figures are in 2000
[DOC File]Rules for Using Significant Figures in Mathematical Operations
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The starting values only have three significant figures each, so round the answer to three significant figures, 16.1. When adding and subtracting values, find the smallest decimal place that all values have in common and are significant and that is the last significant decimal place in your answer.
[DOC File]Significant Figures Practice Worksheet
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Practice Problems for Significant Figures . RULE -1: If the decimal is . Present: Find the first non zero on the left, then count all digits to the . RIGHT. If the decimal is . Absent: Find the first non zero on the right, then count all digits to the . LEFT. RULE-2: Every digit in scientific notation is Significant
[DOC File]Significant Figures - SCH3U
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2000. m contains four sig figs, indicated by the presence of the decimal point Scientific notation - All digits expressed before the exponential term are signicant. 5.060 x 10-3 m has four sig figs. 9.00 x 102 g has three sig figs. Basic Rules for Significant Figures: All non-zero digits are significant
[DOC File]Significant Figures Practice Worksheet
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Significant Figure Calculations. Solve the following mathematical problems such that the answers have the correct number of significant figures: 1) 334.54 grams + 198 grams = _____ 2) 34.1 grams / 1.1 mL = _____ 3) 2.11 x 103 joules / 34 seconds = _____ 4) 0.0010 meters – 0.11 m = _____
[DOC File]Chemistry Worksheets
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Significant Figures Worksheet. How many significant figures are in each of the following numbers? 1) 5.40 ____ 6) 1.2 x 103 ____ 2) 210 ____ 7) 0.00120 ____ ... When 2.0 grams of methane are burned in a bomb calorimeter containing 2000 grams of water, it causes the temperature of the water to rise by 13.30 C. What is the molar heat of ...
[DOC File]Unit 1 Metric system, significant figures, factor label ...
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All non-zero numbers are significant. Zeroes between two non-zero numbers are significant. The (0) is significant. Zeroes to the right of a non-zero number and to the left of an understood. Decimal are not. significant. In the number 2000 with no decimal actually written, the three zeroes are only placeholders to show the magnitude of the number.
[DOCX File]University of Missouri
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2000. 78. How many significant figures are in each number? 0.1111 s. 0.007 m. 108,700 km. 1.563300 × 1011 m. 30,800. 79. Which numbers are exact (and therefore have an unlimited number of significant figures)? π = 3.14. 12 in = 1 ft. EPA gas mileage rating of 26 miles per gallon. 1 gross = 144. 82. Round each number to three significant figures.
[DOC File]Use of Significant Digits
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Significant figures in a measurement include all of the digits that are known precisely plus one last digit that is estimated. Non-zero digits are always significant. 103.230002. Zeros between two other significant digits are always significant. 10.07 ; 2004 ; 6.000. All final zeros after the decimal point are significant. 12.740 ; 0.0420 ...
[DOC File]Name__________________________________Period_______Date
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How many significant figures are in each of the following measurements? 0.0370 g. 0.23100. 200 h. 23,100. 20. i. 23,100. 20.0 j. 7.203. 400,900 k. 0.00231. 0.00990 l. 2000. Calculating With Significant Figures. When you use measurements in calculations, your answer may only be as exact as your least exact measurement. Rule for Addition and ...
[DOC File]Unit Conversions - Scientific Notation and Significant Digits
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In scientific notation, all digits in the coefficient are significant: 8.75 × 105 has three significant digits. Zeros to the right of a significant digit but to the left of a decimal point may or may not be significant: 875,000 has at least three significant digits, but may have as many as six.
[DOC File]Using Significant Figures
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Using Significant Figures. Determine the number of significant digits in each of the following: 23.30 cm 2) 1,843.02 L 3) 2.00012 km 4) 3.65 kg 5) 8.701oC 6) 0.5 mL 7) 365 kg 8) 2000.12 mm 9) 704,000 h. Round these numbers to 3 significant digits. 1,566,311 2.7651 X 10 -3 11) 84,592 0.0011672
[DOC File]Significant Figures Practice Worksheet
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Significant Figures Practice Worksheet. How many significant figures do the following numbers have? 1) 1234 _____ 2) 0.023 _____ 3) 890 _____ 4) 91010 _____
[DOCX File]Cumulative Problems - Chemistry | University of Missouri
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2000. 78. How many significant figures are in each number? 0.1111 s. 0.007 m. 108,700 km. 1.563300 × 10 11 m. 30,800. 79. Which numbers are exact (and therefore have an unlimited number of significant figures)? π = 3.14. 12 in = 1 ft.
[DOC File]Significant Figures Practice Worksheet
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Significant Figure Calculations – Answers. Solve the following mathematical problems such that the answers have the correct number of significant figures: 1) 334.54 grams + 198 grams = 533 grams (rounded from 532.42 grams) 2) 34.1 grams / 1.1 mL = 31 g/mL (not rounded) 3) 2.11 x 103 joules / 34 seconds = 62 J/s (rounded from 62.0588 J/s)
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