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 Avogadro’s Number of entities (atoms, molecules, ions, electrons, etc) or 6.023 x 10²³ objects. I refer to it as the chemist’s 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.