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when ionic compounds dissolve in water
they break down into their ions. covalent compounds do not
electrolytes
compounds that break apart into ions upon dissolving in water
can conduct electricity by the movement of ions through the solutions
solubility
not all ionic compounds readily dissolve in water. some dont dissolve at all
most compounds show an increase in solubility as temp increaes
solubility is the
maximum amount of substance which can be dissolved in a given amount of solvent at a given temperature
a solution which has dissolved the maximum amount of a substance is
saturated
predicting the solubility of salts;
make a saturated solution to determine the solubility of a compound
draw off an exact volume and evaporate all the water from it. remaining mass of solute can be used for determining solubility
soluble:
means we can make up a sol’n of that compound of at least 0.1M
a compound is soluble if we can make a 0.1M solution of it
a substance has low solubility if
if a saturated sol’n of the substance is less than 0.1M
when equal volumes of 0.2M solutions are mixed together…
the resulting compounds will have a concentration of 0.1M
overall ionic equation
net ionic equation
spectator ions
do nothing in the reaction
net ionic rxn for any acid and base
