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OpenStax Chemistry: Atoms First 2e Chapter 6 Key Terms
Chapter 6 Key Terms
20
Chemistry
Undergraduate 1
02/03/2022

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Term
aqueous solution
Definition
solution for which water is the solvent
Term
Avogadro
Definition
experimentally determined value of the number of entities comprising 1 mole of substance, equal to 6.022
Term
concentrated
Definition
qualitative term for a solution containing solute at a relatively high concentration
Term
concentration
Definition
quantitative measure of the relative amounts of solute and solvent present in a solution
Term
dilute
Definition
qualitative term for a solution containing solute at a relatively low concentration
Term
dilution
Definition
process of adding solvent to a solution in order to lower the concentration of solutes
Term
dissolved
Definition
describes the process by which solute components are dispersed in a solvent
Term
empirical formula mass
Definition
sum of average atomic masses for all atoms represented in an empirical formula
Term
formula mass
Definition
sum of the average masses for all atoms represented in a chemical formula; for covalent compounds, this is also the molecular mass
Term
mass percentage
Definition
ratio of solute-to-solution mass expressed as a percentage
Term
mass-volume percent
Definition
ratio of solute mass to solution volume, expressed as a percentage
Term
molar mass
Definition
mass in grams of 1 mole of a substance
Term
molarity (M)
Definition
unit of concentration, defined as the number of moles of solute dissolved in 1 liter of solution
Term
mole
Definition
amount of substance containing the same number of atoms, molecules, ions, or other entities as the number of atoms in exactly 12 grams of
Term
parts per billion (ppb)
Definition
ratio of solute-to-solution mass multiplied by 109
Term
parts per million (ppm)
Definition
ratio of solute-to-solution mass multiplied by 106
Term
percent composition
Definition
percentage by mass of the various elements in a compound
Term
solute
Definition
solution component present in a concentration less than that of the solvent
Term
solvent
Definition
solution component present in a concentration that is higher relative to other components
Term
volume percentage
Definition
ratio of solute-to-solution volume expressed as a percentage
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