Solutions and Solubility Flashcards
(25 cards)
why do ionic compounds dissolve in water?
Water is highly polar
what is hydration?
When water molecules surround the ions of a soluble compound as it dissolves
What is Dissocaition?
process in which ions separate from ionic crystals as they dissolve in solutions.
What is miscible?
liquids that can mix together
What is Immiscible?
Liquids that don’t mix together
what is like dissovles like?
polar and polar dissolve
non polar and non polar dissovle
polar and non polar dont dissovle
What is solubility?
amount of solute that can dissolve in a given quantity of a solvent.
What is saturated solution?
contains the maximum amount of dissolved solute at a specific temp.
what is a unsaturated solution?
More solute can be dissolved at a specific temperature.
what is a super saturated solution?
contains more dissolved solute than expected at a specific temperature.
what happens to ionic compounds?
solubility tends to increase with rising temp.
what happens to gases?
Solubility decreases with rising temperature.
what is thermal pollution?
release of excess thermal energy into water.
lowers o2 levels
how dose pressure effect soilds and liquids?
little effect bc not compressable
how dose pressure effect gases?
significantly effected.
solubility of gas increase in a liquid as the pressere increases.
what is concentration?
amount of solute dissolved per litre of solvent.
what is a dilution?
decreasing concentration by adding more solvent.
whats a volumeteric pipette?
very precise and accurate
whats a graduated pipette
As a Mohr delivers a wide range of volumes.
what is serial dilution?
Use a previously diluted solution to make another more diluted solution.
What is v/v?
% volume/ volume
what is w/w?
%weight/ weight
what is w/v?
% weight/ volume
how do you express extermly low concentrations?
parts per million(ppm 10^6)
Parts per billion (ppb 10^9)
Parts per trillion (ppt 10^12)
