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[DOC File]Rules for Using Significant Figures in Mathematical Operations
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Chemistry: Significant Digits In an attempt to get away from the mathematical burden of uncertainties, scientists have gone to the use of established rules for significant digits that have greatly simplified calculations. These rules are: ... In all calculations, the answer must be governed by the least significant figure employed.
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[DOC File]Rules for Recognizing Significant Figures
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Rule Measured # of Significant . Number Figures _____ A number is a significant figure if it is. A nonzero digit 6.5 g 2. 132.34 m 5. A zero between non zero digits 305 m 3. 2.056 kg 4. A zero at the end of a decimal number 50. L 2. 28.0 cm 3. 18.00 g 4. Any digit in a number written in 4.0 * 105 m 2. scientific notation 6.70 * 10-3 g 3. A ...
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[DOC File]Significant Digits
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2) 0.00418 - three significant figures: the 4, the 1, and the 8. This is a typical type of problem where the student errs by giving five significant figures as the answer. 3) 7.09 x 10¯5 - three significant figures. When a number is written in scientific notation, only significant figures are …
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[DOC File]Significant Digits
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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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[DOC File]Significant Figure Rules
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significant. Zeros between non-zero numbers. are always . significant. All final zeros. to the . right of the decimal place. are . significant. Zeros. that act as . placeholders. are . not significant. Convert quantities to scientific notation to remove the placeholder zeros. Counting numbers. and . defined constants. have an . infinite ...
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[DOCX File]SIGNIFICANT FIGURES
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Chemistry: Significant Digits Name_____ Hr____ Date _____ In an attempt to get away from the mathematical burden of uncertainties, scientists have gone to the use of established rules for significant digits that have greatly simplified calculations.
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[DOC File]Significant Figures Practice Worksheet
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II. Perform the following mathematical operations. Make sure the answer contains the correct number of significant digits. Use scientific notation when it is appropriate. These are all measured quantities. 1. 800 + 3458 + 9.010 + 2100.0 = 6.4 x 103 or 6400. 2. 0.3478 + 0.007822 + 1.03 + 24.677 = 26.06 3.
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Significant Figures - Definition, Rules, Precision, Accuracy & Exampl…
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.
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[DOC File]Rules for Determining Significant Figures in Measurements
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100 has 1 significant figure. Zeros in the beginning of a number whose only function is to place the decimal point are not significant. Example: 0.0025 has 2 significant figures. Zeros following a decimal significant figure are significant. Example: 0.000470 has 3 significant figures. 0.47000 has 5 significant figures.
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[DOC File]Significant Figures Practice Worksheet
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Round down whenever the digit following the last significant figure is a 0,1,2,3, or 4. For example, 30.24 becomes 30.2. Round up whenever the digit following the last significant figure is a 6,7,8,9 or a 5 with any nonzero digit at any place after it.
significant figures in chemistry definition

What is a significant figure chemistry