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Chem [ ] definitions
chemical concentration terms
| Term | Definition |
|---|---|
| Solution | a "well mixed" mixture of 2 or more substances |
| Solute | minor species in solution |
| Solvent | major species in solution (in this class: water) |
| Mole | avagadros number 6.02214076x 10^23 mol^-1 |
| Atomic Mass | number of grams of an element containing Avagadro's number of atoms (g/mol) |
| Molecular Mass | sum of atomic masses of atoms in a molecule; number of grams of an element containing Avagadro's number of atoms (g/mol) |
| Concentration | quantity per unit volume or mass mol/L, molecules/cm^3, moles of solute/mass of solvent |
| Molarity | specific concentration; number of moles per liter of a solution |
| molality | number of moles of substance per kg of solvent |
| Electrolyte | substace that dissociated into ions in solution -A strong electrolyte is mostly dissociated, a weak one is partially dissociated |
| Formal Concentration | molarity of strong electrolyte |
| Formula Mass | "molecular mass" of strong electrolyte |
| Mass mixing ratio | mass of substance/ total mass |
| 1% | 1 per cent 10^-2 |
| 1ppth | 1 parts-per-thousand 10^-3 |
| 1ppm | 1 parts-per-million 10^-6 |
| 1ppb | 1 parts-per-billion 10^-9 |
| 1ppt | 1 parts-per-trillion 10^-12 |
| Gravimetric Analysis | measures mass of substance to complete analysis |
| Volumatric analysis (titrations) | measures volume of material needed to react with analyte |
Created by:
zoey.stevenson
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