Solutions Test Flashcards
Solute
The substance being dissolved (salt, sugar, etc.)
Solvent
The substance that does the dissolving (liquids like water)
Solution
result of having one thing dissolved into another
Dipole-Dipole
occurs when partially positive end of a molecule interacts with the partially negatively charged part of the neighboring molecule.
Strongest inter-molecular force
London Dispersion Forces
Weakest inter-molecular force
exists between all type of molecules
The more electrons, the stronger the LDF
Hydrogen Bonding
occurs between a hydrogen atom bonded to either an O, N, or F atom.
Partially positive end of hydrogen is attracted to the partially negative end of O, N, F, etc.
Reason for exceptionally high boiling and melting points of water
Holds DNA and RNA together
Equation for molarity
M = mol/L
Equation for dilution
M1V1 = M2V2
Electrolytes
acids, bases, salts, ionic compounds, or if it is covalent and contains nitrogen
Non electrolytes
usually covalent compounds, except for acids
CaCl2
electrolyte
PCl3
non-electrolyte
HBr (aq)
electrolyte
Cr(OH)3
electrolyte