Download Chemistry: An Introduction to General, Organic, and by Karen C. Timberlake PDF

By Karen C. Timberlake

ISBN-10: 0321693450

ISBN-13: 9780321693457

Identified for its pleasant writing sort and real-world, health-related purposes, Timberlake’s Chemistry: An advent to common, natural, and organic Chemistry was once created particularly to aid arrange you for a occupation in a health-related profession—such as nursing, dietetics, respiration treatment, or  environmental and agricultural technology. It assumes no past wisdom of chemistry, and makes your path an interesting and confident adventure by way of referring to the constitution and behaviour of subject to its position in well-being and the surroundings. The 11th variation introduces extra problem-solving thoughts, together with new proposal tests, extra problem-solving courses, and extra conceptual, problem, and mixed difficulties.  

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Extra resources for Chemistry: An Introduction to General, Organic, and Biological Chemistry (11th Edition)

Sample text

A zero is not significant if it is a. at the beginning of a decimal number b. 5 Measured Numbers and Significant Figures 15 When one or more zeros in a large number are significant digits, they are shown more clearly by writing the number using scientific notation. 0 * 102 m. In this text, we will place a decimal point at the end of a number if the zeros are significant. For example, a measurement written as 500. g indicates that all the zeros are significant. Thus 500. g has three significant figures.

Forming a study group c. keeping a problem notebook d. waiting to study the night before the exam e. becoming an active learner ANSWER Your success in chemistry can be improved by b. forming a study group c. keeping a problem notebook e. 5 What are four things you can do to help yourself to succeed in chemistry? 6 What are four things that would make it difficult for you to succeed in chemistry? 7 A student in your class asks you for advice on learning chemistry. Which of the following might you suggest?

C. The largest gem ever found, an aquamarine, has a mass of 104 kg. d. A laboratory test shows a blood cholesterol level of 184 mg/dL. 23 How many significant figures are in each of the following measured quantities? a. 005 g b. 000 32 m c. 36 000 000 km d. 80 * 104 kg e. 8250 L f. 19 Identify the measured number(s), if any, in each of the following pairs of numbers: a. 3 hamburgers and 6 oz of hamburger b. 1 table and 4 chairs c. 75 lb of grapes and 350 g of butter d. 25 In which of the following pairs do both numbers contain the same number of significant figures?

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Chemistry: An Introduction to General, Organic, and Biological Chemistry (11th Edition) by Karen C. Timberlake


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