3.6: Key Terms
- Page ID
- 452428
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| Words (or words that have the same definition) | The definition is case sensitive | (Optional) Image to display with the definition [Not displayed in Glossary, only in pop-up on pages] | (Optional) Caption for Image | (Optional) External or Internal Link | (Optional) Source for Definition |
|---|---|---|---|---|---|
| (Eg. "Genetic, Hereditary, DNA ...") | (Eg. "Relating to genes or heredity") |  | The infamous double helix | https://bio.libretexts.org/ | CC-BY-SA; Delmar Larsen |
| Word(s) | Definition | Image | Caption | Link | Source |
|---|---|---|---|---|---|
| aqueous solution | solution for which water is the solvent | ||||
| Avogadro’s number (NA) | experimentally determined value of the number of entities comprising 1 mole of substance, equal to 6.022 1023 mol−1 | ||||
| concentrated | qualitative term for a solution containing solute at a relatively high concentration | ||||
| concentration | quantitative measure of the relative amounts of solute and solvent present in a solution | ||||
| dilute | qualitative term for a solution containing solute at a relatively low concentration | ||||
| dilution | process of adding solvent to a solution in order to lower the concentration of solutes | ||||
| dissolved | describes the process by which solute components are dispersed in a solvent | ||||
| empirical formula mass | sum of average atomic masses for all atoms represented in an empirical formula | ||||
| formula mass | sum of the average masses for all atoms represented in a chemical formula; for covalent compounds, this is also the molecular mass | ||||
| mass percentage | ratio of solute-to-solution mass expressed as a percentage | ||||
| mass-volume percent | ratio of solute mass to solution volume, expressed as a percentage | ||||
| molar mass | mass in grams of 1 mole of a substance | ||||
| molarity (M) | unit of concentration, defined as the number of moles of solute dissolved in 1 liter of solution | ||||
| mole | amount of substance containing the same number of atoms, molecules, ions, or other entities as the number of atoms in exactly 12 grams of 12C | ||||
| parts per billion (ppb) | ratio of solute-to-solution mass multiplied by 109 | ||||
| parts per million (ppm) | ratio of solute-to-solution mass multiplied by 106 | ||||
| percent composition | percentage by mass of the various elements in a compound | ||||
| solute | solution component present in a concentration less than that of the solvent | ||||
| solvent | solution component present in a concentration that is higher relative to other components | ||||
| volume percentage | ratio of solute-to-solution volume expressed as a percentage |