Flashcards in Lecture 3 Deck (17):
A substance that increases the hydrogen ion concentration of a solution. An acid is low on the pH scale
The clinging of one substance to another such as water to plant cell walls, by means of hydrogen bonds. (This is how a miniscus is formed in a test tube.
A substance that reduces the Hydrogen ion concentration. A base has more Hydroxides. It is higher on pH scale.
A solution containing a weak acid & corresponding base. A buffer minimizes changes in pH when acids or bases are added.
Linking together of like molecules. Often by H-bonds. Related to surface tension.
Thermal energy in transfer of one body of matter to another. NOT TEMPERATURE. It is the TOTAL quantity of kinetic energy due to molecular motion.
Positively charged hydrogen atom. Lost it's ONLY electron. Happens when H2O splits into OH and H
Having an affinity for water
Having an aversion for water
The measure of a solute concentration. Refers to number of moles of solute per liter of solution.
1 mole = total # of daltons in grams
1 mole = 6.02 x 10^23 molecules
Proton/neutron = 1 dalton
A measure of Hydrogen ion concentration
Molecule with an uneven distribution of charges in different regions of the Mol'c
Substance dissolved in a solution
Solvent + Solute = Solution
Dissolving agent of a solution.
Note: Water is most versatile solvent known.