Prefix_guide(2)

# Prefix_guide(2) - So there are fewer of these per one...

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The following table is designed to help you understand metric prefixes. In each example, the gram is going to be used as the “starting unit”, but you can substitute ANY unit where you see the word gram. Prefix Symbol What it means exa E 1 exagram = 1 x 10 18 grams OR 1 gram = 1 x 10 -18 exagrams peta P 1 petagram = 1 x 10 15 grams OR 1 gram = 1 x 10 -15 petagrams tera T 1 teragram = 1 x 10 12 grams OR 1 gram = 1 x 10 -12 teragrams giga G 1 gigagram = 1 x 10 9 grams OR 1 gram = 1 x 10 -9 gigagrams mega M 1 megagram = 1 x 10 6 grams OR 1 gram = 1 x 10 -6 megagrams kilo K 1 kilogram = 1 x 10 3 grams OR 1 gram = 1 x 10 -3 kilograms hecto H 1 hectogram = 1 x 10 2 grams OR 1 gram = 1 x 10 -2 hectograms deka da 1 dekagram = 1 x 10 1 grams OR 1 gram = 1 x 10 -1 dekagrams This is where your “starting unit” lies. The prefixes above represent a quantity that is larger than the starting unit.
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Unformatted text preview: So, there are fewer of these per one starting unit. Example: There are 0.001 kilograms in one gram. The prefixes below represent a quantity that is smaller than the starting unit. So, there are more of these per one starting unit. Example: There are 1,000 milligrams in a gram. deci d 1 decigram = 1 x 10-1 grams OR 1 gram = 1 x 10 1 decigrams centi c 1 centigram = 1 x 10-2 grams OR 1 gram = 1 x 10 2 centigrams milli m 1 milligram = 1 x 10-3 grams OR 1 gram = 1 x 10 3 milligrams micro μ 1 microgram = 1 x 10-6 grams OR 1 gram = 1 x 10 6 micrograms nano n 1 nanogram = 1 x 10-9 grams OR 1 gram = 1 x 10 9 nanograms pico p 1 picogram = 1 x 10-12 grams OR 1 gram = 1 x 10 12 picograms femto f 1 femtogram = 1 x 10-15 grams OR 1 gram = 1 x 10 15 femtograms atto a 1 attogram = 1 x 10-18 grams OR 1 gram = 1 x 10 18 attograms...
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## This note was uploaded on 07/10/2011 for the course CHEM 101 taught by Professor Taracarpenter during the Fall '08 term at UMBC.

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