CHM 2045C†††† Module Eight: Solutions(chapter 5)†† Answers

 

Part K: Solution Definitions††††††† 10 points

Fill in the blank with word for the definition listed:

 

1._saturated_____When dynamic equilibrium is established between undissolved solute in a

†† †††††††††††††††††††††††††††Solution, we say the solution is __.

 

2. _unsaturated___ Any solution containing less solute than it could hold at equilibrium is said

†††††††††††††††††††††††††††††† To be a(n) _______________solution.

 

3. _solute____†††††† That part of a solution which you are dissolving.

 

 

4. _solvent________ That part of a solution which does the dissolving (or the media of the

††††††††††††††††††††††††††††††† solution).

 

5. _colloids_____†† are dispersions in which that the dispersed matter has one or more dimensions

††††††††††††††††††††††††††††††† in the range of 1 to 1000 nm and has the unique ability to scatter light.

 

6. _molality_____of a solution is the number of moles of solute per kilogram of solvent.

 

 

7. __molarity______of a solution is the number of moles of solute per Liter of solution.

 

 

8. __% by Mass__of a solution is the grams of solute per 100 grams of solution

 

 

9.__% by Volume__†† of a solution is the milliliters of solute per 100 milliliters of solution.

 

 

10._Solution___homogeneous mixture of a solute and a solvent.

 

Normailty of a solution is the number of equivalents of solute per liter of solution.

 

A mole is defined as Avogadroís Number of entities (atoms, molecules, ions, electrons, etc) or 6.023 x 1023 objects. I refer to it as the chemistís dozen.

 

An equivalent is defined as number of entities that will produce one mole of reacting species.

 

Equivalent of an Acid: amount of acid molecules that will produce one mole of hydrogen ions in a solution

 

Equivalent of a Oxidizer: Amount of Oxidizer which will accept one mole of electrons from a reducer

 

Equivalent of an Electrolyte: Amount of ions that will produce one more of positive (or negative) charge to a solution.