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Chemistry - Labs and Exercise

Other On-Line Resources: Labs and Demonstrations

Labs are available for download in WordPerfect format.

Right-click your mouse on the lab title to download and save the file. Internet Explorer users should choose "Save Target As..." from the pop-up menu.

Labs

     

  • Aqueous Solution Reactions  NEW!
    Purpose: To determine the concentration and % (m/v) of vinegar.

     

     

  • Acid/Base Titration  NEW!
    Purpose: To observe the formation of precipitates by the mixing of different combinations of aqueous solutions. To write ionic and net ionic equations for each combination of solutions that forms a precipitate.

     

     

  • The Clock Reaction  NEW!
    Purpose: An investigation on how concentration of reactants, temperature, and the addition of a catalyst affect the speed of a reaction.

     

     

  • Colorimetry  NEW!
    Purpose: To observe the proportional relationship between solution concentration and absorbance (Beer's Law). To determine the concentration of an unknown CuSO4 solution.

     

     

  • Conditions that Affect the Rate of Solvation  NEW!
    Purpose: To observe the time required to dissolve copper sulphate under different conditions.

     

     

  • Determination of pH  NEW!
    Purpose: One can mathematically determine a value of pOH and pH if the concentration of M(OH) is precisely known.

     

     

  • Determining the Formula of a Hydrate  NEW!
    Purpose: To determine the formula by decomposing a hydrate by heating.

     

     

  • Dilution of a Solution  NEW!
    Purpose: To dilute the 0.200 M solution of copper sulphate prepared in a previous lab.

     

     

  • Ester Synthesis  NEW!
    Purpose: To prepare the following two esters: pentyl acetate (banana oil) and acetylsalicylic acid (aspirin).

     

     

  • Heat Capacity of a Calorimeter  NEW!
    Purpose: To determine the heat capacity of a Calorimeter (Ccal).

     

     

  • Heat of Reaction  NEW!
    Purpose: Use the Law of Conservation of Energy and the First Law of Thermodynamics to calculate the heat involved in an acid-base reaction.

     

     

  • Heat of Reaction for the Combustion of Magnesium (Hess's Law)  NEW!
    Purpose: Use Hess's law to determine the heat for the reaction that is difficult to measure directly.

     

     

  • Preparation of a Standard Solution  NEW!
    Purpose: To prepare 100.0 mL of a 0.200M standard solution of copper sulphate.

     

     

  • Preparing a Stock Solution/Performing Dilutions  NEW!
    Purpose: To prepare a Stock Solution. To perform dilutions of a Stock Solution. To observe the proportional relationship between solution concentration and specific gravity. To determine the concentration of an unknown NaCl solution.

     

     

  • Solubility Factors  NEW!
    Purpose: To study a factor affecting solubility. To study some of the factors affecting the rate of dissolution.

     

     

  • Solubility of Ammonium Chloride  NEW!
    Purpose: To show how the solubility of a salt such as ammonium chloride varies with the temperature and how to plot its solubility curve on the basis of observed data.

     

     

  • Solubility-Product Constant for Ba(OH)2  NEW!
    Purpose: The purpose of this lab is to calculate the Ksp value for Ba(OH)2.

     

     

  • Structure and Nomenclature of Organic Compounds 1  NEW!
    Purpose: To draw the structures of and name aliphatic hydrocarbons.

     

     

  • Structure and Nomenclature of Organic Compounds 2  NEW!
    Purpose: To draw the structures of and name aliphatic, cyclic, and aromatic hydrocarbons.

     

     

  • A Single Replacement Reaction
    Purpose: To conduct a single replacement reaction, make careful measurements, find a mole ratio, and calculate a percent error.

     

     

  • Activity Series
    Purpose: To observe single replacement reactions; To draw up an activity series for five metals.

     

     

  • Atomic Mass
    Purpose: To better understand that most elements exist as a mixture of isotopes; To determine the atomic mass of the element "soupmix."

     

     

  • Chemical Reactions
    Purpose: The purpose of this lab is to review nomenclature, balancing equations, reaction types, predicting products, and the evidence for chemical change. You will also learn to identify precipitates by using a solubility table.

     

     

  • Empirical Formula Determination
    Purpose: To determine the empirical formula of a compound containing zinc and chlorine.

     

     

  • Formula of a Hydrate
    Purpose: To determine the formula of a hydrate.

     

     

  • Identifying Elements Using Flame Tests
    Purpose: To observe the flame colours of known chemical samples; To determine the elements present in unknown samples using their flame colours.

     

     

  • Making Chemical Products
    Purpose: To gain experience in basic laboratory techniques and safety; To prepare chemical substances and observe their properties.

     

     

  • Molar Volume of a Gas
    Purpose: To use some Gas Laws to measure the amount of moles of gas produced; To relate moles gas produced to moles reactant used (stoichiometry) and balance an equation.

     

     

  • Rutherford's Experiment
    Purpose: The purpose of this of this exercise is to simulate Rutherford's alpha-scattering experiment.

     

     

  • Stoichiometry (Limiting Reagent)
    Purpose: To determine the limiting reagent of the reaction between sodium carbonate and copper (II) chloride.

     

     

  • Stoichiometry (Mass Relationship of Chemical Change)
    Purpose: To determine the mass ratio between reactants and products. To determine the coefficients of a chemical equation.

     

     

  • The Mole
    Purpose: The purpose of this exercise is to practice calculating the mole.

     

     

  • The Percentage of Oxygen in Potassium Chlorate
    Purpose: To determine the percentage composition of oxygen in potassium chlorate.

     

     

  • The Periodic Law
    Purpose: To determine the densities of certain group 4 elements. To predict the density of germanium using the Periodic Law.

     

Demonstrations

Useful Documents

 

 

  
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