Scan_Doc0016 - 10-3 micro f.L 0.000001 10-6 nano n...

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use the force that gravity exerts on an object to measure its mass. We call this force the object's weight. Since weight is the response of mass to gravity, it varies with the strength of the gravitational field. Therefore, your body mass is the same on the earth or on the moon, but your weight would be much less on the moon than on earth because of the moon's smaller gravitational field. Because weighing something on a chemical balance involves comparing the mass of that object to a standard mass, the terms weight and mass are sometimes used inter- changeably, although this is incorrect. 10 Chapter One Chemical Foundations Table 1..2 The Prefixes Used in the SI System (Those most commonly encountered are shown in blue.) Exponential Prefix Symbol Meaning Notation" exa E 1,000,000,000,000,000,000 10 18 peta P 1,000,000,000,000,000 10 15 tera T 1,000,000,000,000 10 12 gig a G 1,000,000,000 10 9 mega M 1,000,000 10 6 kilo k 1,000 10 3 hecto h 100 ]0 2 deka da ]0 10 1 1 10° deci d 0.] 10- 1 centi c 0.0] 10- 2 milli m 0.001
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Unformatted text preview: 10-3 micro f.L 0.000001 10-6 nano n 0.000000001 10-9 pico p 0.000000000001 10-12 femto f 0.000000000000001 10-15 atto a 0.000000000000000001 10-18 *See Appendix 1.1 if you need a review of exponential notation. II.] 1 dm 3 = 1 L Figure 1. .5 The largest cube has sides 1 m in length and a volume of 1 rn", The middle-sized cube has sides 1 dm in length and a vol-ume of 1 drn", or 1 L. The smallest' cube has sides 1 cm in length and a volume of 1 ern", or 1 mL. I~I l01--=-- 10m' .hL Table 1. .3 ~" Some Examples of Commonly Used Units Length A dime is 1 mm thick. A quarter is 2.5 em in diameter. The average height of an adult man is 1.8 m. A nickel has a mass of about 5 g. A 120-lb person has a mass of about 55 kg. A 12-oz can of soda has a volume of about 360 mL. Mass Volume 1 rrr'...
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This note was uploaded on 12/13/2010 for the course CHEM 2301 taught by Professor Bill during the Spring '10 term at South Texas College.

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