Rounding numbers in chemistry
[DOC File]Chemistry, 6e (McMurry/Fay)
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Topic: Section 1.13 Rounding Numbers 96) Each of the numbers in the following calculation represents a quantity measured by a student in the laboratory. After performing the calculation, the student's calculator appeared as shown below: To the correct number of significant figures what is the value of g? A) 6 × 10-3. B) 6.0 × 10-3. C) 6.00 ...
[DOC File]Name:
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Understand precision, accuracy, significant figures, and rounding numbers. Perform calculations and obtain answers with the correct number of significant figures. Understand dimensional analysis and perform unit conversions. Chapter 2. Demonstrate an understanding of basic atomic structure, atomic number, and mass number.
[DOC File]Honors Chemistry
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Rules for Rounding Off. When doing calculations from measured numbers using a calculator, you get answers that give several digits. However, your answer cannot be more precise than your actual measurements. For example if you are calculating the area of a piece of cloth that measures 6.3 m by 3.4 m, the answer is 21.42 m2.
[DOC File]General Chemistry: Atoms First (McMurry/Fay/Pribush ...
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Rules of Rounding: numbers greater than 5 (6-9) get rounded _____ numbers less than 5 (1-4) get rounded _____ for numbers ending on 5 (the “5” rule): if the preceding digit is odd, round ____ if the preceding digit is even, round _____ ... Careers in Chemistry: Analytical chemists focus on making quantitative measurements. They can work for ...
[DOC File]Significant Figures and Rounding Measurements Name
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UNIT 1 NOTES: Scientific Notation, Significant Figures & Rounding, Metric Units (Chapter 3 in your Chemistry Text) Scientific Notation. When scientists talk about very large or very small numbers, it gets difficult to name the number (e.g. a one followed by 15 zeros is quadrillion or quintillion?) and it’s painstaking to write them down.
[DOC File]Rules for Determining Significant Figures in Measurements
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: Rounding Numbers In numerical problems, it is often necessary to round numbers to the appropriate number of significant figures. Consider the following examples in which each number is rounded so that each of them contains 4 significant figures.
[DOC File]Rules for Recognizing Significant Figures
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Rounding off numbers. If the first digit to be thrown away is greater than or equal to five, then the last digit kept is rounded up by one, otherwise it is unchanged. Applying sig fig rules to addition and subtraction. ... Chemistry 11 Problem Solving in Chemistry ...
[DOC File]UNIT 1 Notes: Scientific Notation, Significant Figures ...
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Rules for Rounding Numbers. If the digit to the . immediate right. of the last significant figure is < 5, do not change. the last significant figure. > 5, round up. the last significant figure. = 5, and is . followed by. a . nonzero digit, round up. the last significant figure. = 5, and …
[DOC File]Chemistry 11 Problem Solving in Chemistry
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Topic: Section 1.13 Rounding Numbers 100) Each of the numbers in the following calculation represents a quantity measured by a student in the laboratory. g = 0.0220 × × 12.0. After performing the calculation, the student's calculator appeared as shown below: To the correct number of significant figures what is the value of g? A) 6 × 10-3
Significant figures and rounding
Round off each of the following numbers to three significant figures. a. 15.9994 b. 1.0080. c. 0.6654 d. 4885. e. 87,550 f. 0.027225. 2. Put the following numbers into scientific notation and write down the number of. ... Significant Figures and Rounding Measurements Name _____ ...
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