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Numerical measurements

absolute uncertainty : true value +/- (range of values /2). Numerical measurements. a lways involves. uncertainty. which is expressed as. w hich is reflected by. relative uncertainty : average range/true value. Significant Figures. a djusted by. Rounding off.

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Numerical measurements

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  1. absolute uncertainty: true value +/- (range of values /2) Numerical measurements always involves uncertainty which is expressed as which is reflected by relative uncertainty: average range/true value Significant Figures adjusted by Rounding off Using conventional math rules In calculations, propagation of error

  2. Naming Compounds: Polyatomic Elements • More than two atoms: • Ozone: O3 • Phosphorus: P4 • Sulfur: S8 • Buckminsterfullerene: C60 & C70 • Diatomic Elements • Hydrogen • Nitrogen • Oxygen • Fluorine • Chlorine • Bromine • Iodine

  3. Naming Binary Compounds

  4. Naming Ternary Compounds: • Polyatomic ions: need to memorize them • Oxyacids: variable number of oxygen atoms

  5. How to Solve Such a Problem

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