CHEM 1210 Lecture Notes - Lecture 1: Decimal Mark, Significant Figures, Scanning Electron Microscope
Document Summary
The study of matter and the changes it undergoes. Macroscale- can be seen by the naked eye. Microscale- can be seen with a microscope (magnify a macroscale times a thousand) Nanoscale- can be seen with a scanning electron microscope (magnify a microscale times a thousand) Atomic scale- cannot be seen at all (magnify a nanoscale times ten) Tera- (t) one trillion; 1,000,000,000,000; 10^12 teragram= one trillion grams. Giga- (g) one billion; 1,000,000,000; 10^9 gigagram= one billion grams. Mega- (mm); one million; 1, 000, 000; 10^6 megagram= one million grams. Kilo- (k); one thousand; 1,000; 10^3 kilogram= one thousand grams. Deci-(d); one tenth; 0. 1; 10^-1 decigram= one tenth of a gram. Centi- (c); one hundredth; 0. 01; 10^-2 centigram= one hundredth of a gram. Milli- (m); one thousandth; 0. 001; 10^-3 milligram= one thousandth of a gram. Micro- (mue/mc/micro); one millionth; 0. 000001; 10^-6 microgram= one millionth of a gram. Nano- (n); one billionth; 0. 000000001; 10^-9 nanogram= one billionth of a gram.
