Ch 122 CH 14
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Definition: a substance whose aqueous solution conducts electricity.
-Compounds which dissolve to form solutions which conduct electricity are called___
A primary conductor includes ____, since current flow is the movement of conductors
Secondary conductors include solutions of ____, because current is transported by the movement of ___
Definition: The process whereby electrical energy is used to bring about chemical change.
-Current passing through solutions causes chemical reactions- this is called___
Definition: The electrode where eduction occurs in an electrochemical reaction.
-The electrode bearing an excess of electrons is called the ___
Definition: The electrode where oxidation occurs in an electrochemical reaction.
Why are electrolytes such as acetic acid weak conductors of electricity?
Because they're only partly ionized.
Colligative properties are dependent on the ___ of solute particles.
The vapor pressure of solution is (lower/higher) than pure solvent?
Solutions freeze at ___ temperatures and boil at ___ temperatures than pure solvents.
The constant which relates the change in temp to concentration is called ___ ____ or ____ ____
molal boiling, or freezing constant
Concentrations are expressed in ____
molal AKA molality is measured by ?/?
Moles of solute per kg solvent.
_____ is the movement of solvent molecules from high to low concentrations
Osmotic pressure is a measurement of
the movement of molecules tendency to go from high to low concentrations.
Sea water relative to normal cells is _____
(hypertonic, hypotonic, or isotonic)
Water leaves the cell, and it shrinks.
Freshwater is ____ (hypertonic, hypotonic, or isotonic)
concentration of elements are the same within a cell as outside the cell is considered_____ (hypertonic, hypotonic, or isotonic)
a Volatile solution is one which has
a substance that readily evaporates: higher BP, lower FP
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