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Unformatted text preview: Scientific Notation 1.23 x 10 11 Coefficient: greater than or equal to 1, but less than 10. Cannot be a double digit number! Exponent: provides information about how to move the decimal point. (+) Move the decimal point to the right () Move the decimal point to the left Express 500 to 1, 2, and 3 significant figures 5 x10 2 5.0 x10 2 5.00 x10 2 1 sig fig 2 sig figs 3 sig figs Practice: Put the following numbers in scientific notation with 3 significant figures: 0.00477 56,000 289,000,000 0.00000880 Conclusions: Significant figures are related to the degree of precision in an instrument Not all digits will be significant o Nonzero digits are significant o Zeros between nonzero digits are significant o Zeros to the right of a nonzero digit and a decimal point are significant o Place holder zeros are not significant Use scientific notation for ambiguous numbers...
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 Spring '11
 DONAHUE
 Chemistry

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