Significant figures for logarithm

• [DOC File]A LOGARITHM is an exponent

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  Explanation: The number as 2.500 x 10-2, we predicted that the log should lie between -2 and -1. The number has four significant figures; therefore the mantissa must have four significant figures: -1.6021. Sample Problem 2: Find the log of 3.0 x 10-9. Solution: The log of (3.0 x 10-9) is -8.52.

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• [DOC File]UNIT 1 Notes: Scientific Notation, Significant Figures ...

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  Significant Figures & Rounding, Metric Units ... For values written in scientific notation, the digits in the coefficient (mantissa) are significant. 5) In a common logarithm, there are as many digits after the decimal point as there are significant figures in the original number.

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• [DOCX File]www.dvusd.org

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  = - log (2.9 x 10-4 ) = 3.54. The pH is less than 7.00, so the solution is acidic. Note the use of significant figure; there are two significant figures in the concentration, so the value for pH has two decimal places.

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• [DOC File]CHAPTER 11

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  Significant figures must be observed in calculations with logarithms. The rule is that the number of decimal places (including zeros) given in a logarithm is the number of figures that are significant in the antilog. Note in the preceding exercise that the ln, 0.3612, has three decimal places and that the antiln, 0.6969, has three significant ...

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• [DOCX File]ssievers.weebly.com

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  All non-zero digits are always considered significant. So 24 has two significant digits, and 24.1 has three significant digits.

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• [DOC File]Unit 6: Exponential and Logarithmic Functions

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  But the number 4000.5 has five significant digits: the 4, the 5, and all the zeros in between. And the number 0.003 has three significant digits: the 3 and the two zeros that come between the 3 and the decimal point. Example 3. Evaluate the following expressions. Round to 3 significant figures and write your answer in scientific notation. a) b ...

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