Titrations
PURPOSE
To determine the concentration of acetic acid in vinegar.
GOALS
1
To perform an acid-base titration.
2
To gain experience titrating carefully to a visible endpoint.
3
To gain experience monitoring a titration with a pH electrode and det
Molecular Geometry
PURPOSE
A To explore some simple molecular structures.
B To explore the relationship between bond order and bond length.
C To explore resonance structures.
GOALS
1
To compare Lewis structures to three-dimensional models.
2
To visualize
Measuring Enthalpy Changes and Gas Laws
PURPOSE
To observe changes in enthalpy in chemical processes.
To determine the relationship between the pressure and volume of a gas.
GOALS
1
To identify exothermic and endothermic processes.
2
To relate enthalpy ch
Moles, Mass, and Volume
PURPOSE
A To determine how many years it would take to count a mole of popcorn.
B To determine the mass of a mole of popcorn, the mass of a mole of marbles, and the ratio of
these molar masses.
C To determine the volume of an indiv
Qualitative Analysis
PURPOSE
To develop a separation scheme and confirmatory tests for Fe3+ , Ba2+ , and Ag+ cations, and
to use it to identify the ions in a sample of unknown composition.
GOALS
1
To explore solubilities and reactivities of different meta
Acid-Base Studies
PURPOSE
To measure pHs in a variety of solutions and mixtures and to account for the results obtained.
GOALS
1
To learn to use pH paper and a pH electrode to measure the pH of a given solution.
2
To become familiar with the pH scale.
3
T
Solid State Modeling
PURPOSE
A To explore some simple solid state structures.
B To explore unit cell stoichiometry.
GOALS
1
To visualize the three dimensional arrangement of atoms and ions in common solid state structures.
2
To determine the stoichiometry
Emission and Absorption
PURPOSE
A To determine the identities of ions in two solutions of unknown composition by comparing the
colors they produce in flame tests with colors produced by solutions of known composition.
B To determine the relationship betwe
Equilibrium and Le Ch
ateliers Principle
PURPOSE
To observe systems at equilibrium, and to determine what happens when stresses are applied
to such systems.
GOALS
1
To observe the effect on equilibrium of adding or removing products and reactants.
2
To pr
Solubility Rules
PURPOSE
To develop a set of solubility rules.
GOALS
1
To observe trends in solubility and exceptions to these trends.
2
To write chemical formulas based on cation/anion charges.
3
To learn to write net ionic equations.
INTRODUCTION
Chemic