Lesson 5: Solutions Flashcards
Homogenous mixture of two or more substances
solutions
what are the two components of solution?
solute and solvent
types of solution based on saturation/solubility limit
- saturated
- unsaturated
- supersaturated
less solute than solvent’s capacity to dissolve
unsaturated
just right mixture
saturated
unstable, excess solute crystallizes
supersaturated
types of solution based on concentration of ratio on solute and solvent
- diluted
- concentrated
small amount of solute
diluted
large amount of solute
concentrated
5 ways to express concentrations of solution
- Percent Solutions
2.Mole Fractions - Molality
- Molarity
- Parts per Million
the ratio of the (mass/volume) of the solute divided by the (mass/volume) of the solution
Percent Solutions
Number of moles of the component divided by the number of moles of all components present. Sum of all components must always be equal to one.
Mole Fraction
m=moles of solute/kg of solvent
molality
especially useful in stoichiometric calculations
molarity