Chapter Unit Conversions

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Chapter 8Unit Conversions287ou may agree with Roger Bacon that mathematics is the easiest of sciences, but many beginning chemistry students would not. Because they have found mathematics challenging, they wish it were not so important for learning chemistry or for answering so many of the questions that arise in everyday life. They can better relate to Fran Lebowitz s advice in the second quotation. If you are one of the latter group, it will please you to know that even though there is some algebra in chemistry, this Chapter teaches a technique for doing chemical calculations (and many other calculations) without it. Although this technique has several common names, it is called unit analysis in this text. You will be using it throughout the rest of this book, in future chemistry and science courses, and in fact, any time you want to calculate the number of nails you need to build a fence, or the number of rolls of paper you require to cover the kitchen unit Rounding Off and Significant Density and Density Percentage and Percentage A Summary of the unit Analysis Temperature Conversions List the metric units without prefixes and the corresponding abbreviations for length (meter, m), mass (gram, g), volume (liter, L), and energy (joule, J).

8.1 Unit Analysis 289 objeCtive 2 This relationship can be used to produce two ratios, or conversion factors: 5 mL 1 tsp 5 mL 1 tsp or The first of these can be used to convert teaspoons to milliliters, and the second can be

  Unit, Factors, Conversion, Conversion factors, Unit conversion