How many significant figures in 0

    • [PDF File]Chapter 1 Lecture Notes Significant Figures and Calculations

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      0.00005 a. 1 b. 2 c. 3 d. 4 e. no correct answer 0.05000 a. 1 b. 2 c. 3 d. 4 e. no correct answer ... How many significant figures should be used in the answer below (assuming measured values)? 8.259 x 1.2 3.33 = 2.9762162 a. 2 sig figs b. 3 sig figs c. 4 sig figs d. no correct answer • Addition ...

    • [PDF File]Chapter 1 Measurements

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      A. Which answer(s) contain 3 significant figures? 1) 0.4760 2) 0.00476 3) 4.76 x 103 B. All the zeros are significant in 1) 0.00307 2) 25.300 3) 2.050 x 103 C. The number of significant figures in 5.80 x 102 is 1) one 3) two 3) three Learning Check

    • [PDF File]Significant Figures - University of Utah

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      The number of significant figures tells the reader the precision of a measurement. Table A-1 gives some examples. Table A-1 Length (centimeters) Number of Significant Figures 12.74 4 11.5 3 1.50 3 1.5 2 12.25345 7 0.8 1 0.05 1 One of the things that this table illustrates is that not all zeros are significant. For example, the zero in 0.8 is ...

    • [PDF File]Uncertainties and Significant Figures

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      A. Rules for Determining Significant Figures in a Number 1. All non-zero numbers are significant. 2. Zeros within a number are always significant. 3. Zeros that do nothing but set the decimal point are not significant. Both 0.000098 and 0.98 contain two significant figures. 4. Zeros that aren’t needed to hold the decimal point are significant.

    • [PDF File]Significant Figures - Metropolitan Community College

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      A. Rules for determining how many Sig Figs are in a number: Rule #1: Non-Zero digits (# 1 – 9) and Zeros that are in between two non-zero digits are always significant. Rule #2: Leading zeroes are never significant. Rule #3: Trailing zeroes are only significant if a decimal point is present in the number. Examples: a. 809,231 b. 0.00456 c ...

    • [PDF File]Rules for Significant Figures (sig figs, s.f.)

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      Rules for Significant Figures (sig figs, s.f.) A. Read from the left and start counting sig figs when you encounter the first non-zero digit 1. All non zero numbers are significant (meaning they count as sig figs) 613 has three sig figs 123456 has six sig figs 2. Zeros located between non-zero digits are significant (they count)

    • [PDF File]Appendix A: Significant Figures

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      +0.013 2.535 10.485 10.49 2.54 The uncertain figures in each number are shown in bold-faced type. Multiplication and division When multiplying or dividing numbers, the number of significant figures must be taken into account. The result should be given to as many significant figures as the term in the product that is given to the

    • [PDF File]Chapter 2

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      clarifies that there are three significant figures in 0.0990. Example 2.1 How many significant figures are in each of the following measurements? Convert each measurement to its equivalent scientific notation or decimal form. (a) 0.0120 mol HCl (b) 605.3 mg CaCO 3 (c) 1.043 × 10 –4 mol Ag+ (d) 9.3 × 10 4 mg NaOH Solution

    • [PDF File]Significant Figures - Montgomery College

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      Significant Figures Scientific measurements are reported so that every digit is certain except the last, which is estimated. All digits of a measured quantity, including the certain one, are called significant figures. Counting Significant Figures Examples 1. All non-zero digits are always significant. 1.54 (3 sig. figs.) 45 (2 sig. figs.) 2.

    • [PDF File]Significant Figure Rules for logs - Laney College

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      log 0.00723 = -2.14086 log 0.00724 = -2.14026 The numbers we took the log of had three significant figures. The results of the calculations differed in the third decimal place. Here are some more. In this case, the numbers we are taking the log of have two significant figures. log 0.0056 = -2.2518 log 0.0057 = -2.2441 log 0.0058 = -2.2366

    • [PDF File]Introduction to Measurements - Memphis

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      Significant Figures 36.00620 7significant figures 10.2 0.00304 3significant figures 3significant figures Introduction to Measurements Significant Figures When a number ends with one or more zeros to the left of the decimal, you must indicate the exact number of significant figures. 420,000 How many significant figures? Introduction to Measurements

    • [PDF File]A Short Guide to Significant Figures

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      0.001o C has only 1 significant figure, 0.012 g has 2 significant figures. (4) Zeroes to the right of a decimal point in a number are significant: 0.023 mL has 2 significant figures, 0.200 g has 3 significant figures. (5) When a number ends in zeroes that are not to the right of a decimal point, the zeroes are not necessarily significant:

    • [PDF File]Standards for Measurement - Columbia University

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      Significant Figures (Sig. Figs.) 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. If the same measurement is made with an analytical balance (precision ± 0.0001g) , the mass might be 23.5820 g (6 sig. fig.)

    • [PDF File]Utah State University Chemistry and Biochemistry | USU

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      2) How many significant figures are in the measured number 0.00208 m? A) six B two hree D) four E) five Answer: c o. O.. e-.A8 0? 3) How many significant figures are in the measured num er 31.00C? A) one B two C ree D) four E) none — it's an exact number Answer: C 4) How many significant figures are in the measured number 5.71 x 10-2g? A) one two

    • Significant Figures - Purdue University

      rules. The number of significant figures that should be used in stating a result is inseparably connected with the accuracy with which the result is known. (1) The number of significant figures in the experimental uncertainty is limited to one or (when the experimental uncertainty is small, e.g., ± 0.15) to two significant figures. You

    • [PDF File]Significant Figures Worksheet - Ms. Pasta's Classes

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      Significant Figures Worksheet 1. Indicate how many significant figures there are in each of the following measured values. 246.32 107.854 100.3 0.678 1.008 0.00340 14.600 0.0001 700000 350.670 1.0000 320001 2. Calculate the answers to the appropriate number of significant figures. 32.567 135.0 + 1.4567

    • [PDF File]Module 3 – Significant Figures

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      3. How many significant figures are in each of these? a. 0.002030 b. 670.0 c. 2 (exactly) 4. Round these numbers as indicated. a. 62.75 to the tenths place. b. 0.090852 to 3 sig figs. * * * * * Lesson 3A: Rules for Significant Figures Nearly all measurements have uncertainty. In science, we need to express

    • [PDF File]Appendix 1, Significant figures in numerical calculations

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      would report as 1.86, that is, with three significant figures, with the understanding that the rightmost (third) digit is uncertain by one unit. Here are some examples of how to interpret numerical values in terms of the number of significant figures they represent. numerical value significant figures 1.2 two 0.0012 two 0.001200 four 10. two 10 one

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