High School Chemistry Experiments!

Chemistry Experiments!!!

Home Page!!!

Don't forget to study purpose and procedure of the experiment before experiments.

This page is consist of chemistry experiments.

***Chemistry Comics"

RULES OF THE LABORATORY

If an experiment works, something has gone wrong.
When you don't know what you're doing, do it neatly.
Experiments must be reproducible; they should fail the same way each time.
First draw your curves, and then plot your data.
Experience is directly proportional to equipment ruined.
Always keep a record of your data. It indicates that you have been working.
If you can't get the answer in the usual manner, start at the answer and derive the question.
Team work is essential, it allows you to blame someone else.
All unmarked beakers contain fast-acting, extremely toxic poisons.
No experiment is a complete failure. At least it can serve as a negative example.

EXPERIMENTS


1. Density Determination » Click!!!	Learn and practice techniques and calculations for determining volume and density of a substance.

2. Electrolysis of Water » Click!!!	To decompose water into simpler substances making use of electricity.

3. Separation of Mixtures » Click!!!	To prepare the mixtures and investigate the properties of them and to separate the mixtures into components.

4. Bp of Compounds and Mixtures » Click!!!	To explain constant boiling point of compounds and to understand uncertainty of boiling point of mixtures.

5. Acid, Base or Not? » Click!!!	To identify a solution is acidic, basic or neutral in the laboratory.

6. Determining Atomic Mass » Click!!!	From measurements of a binary compound of known composition, determine the gram atomic mass of one of the elements in the compound when the atomic mass of the other element is known.

7. Physical & Chemical Changes » Click!!!	Recognize and distinguish between chemical and physical changes.

8. Conservation of Mass » Click!!!	To recognize the law of conservation of mass and to learn the careful use of a balance in determining the masses of reactants and products.

9. Types of Chemical Reactions » Click!!!	Observe some chemical reactions and identify reactants and products of those reactions. Classify the reactions and write balanced equations.

10. Determining an Empirical Formula » Click!!!	Using mass relationships, show that magnesium and oxygen combine in a definite whole-number ratio by mass.

11. Composition of Hydrates » Click!!!	Determine the percentage of water, find the number of molecules of water in a hydrate.

12. Graham’s Law Of Diffusion » Click!!!	Verify Graham's law by measuring the distances traveled during the same period of time by two different gases of known molecular mass.

13. Effect of Pressure on The Volume of A Gas » Click!!!	To determine what if any/ mathematical relationship exists between the volume and pressure of a fixed mass of gas at constant temperature.

14. Effect of Temperature on The Volume of A Gas » Click!!!	To prove the validity of ‘Combined Gas Law’

15. Boiling At Reduced Pressure » Click!!!	To observe the relation of pressure and boiling point.

16. Dancing Spaghetti » Click!!!	To show the effect of the pressure of the gases on the solid materials.

17. Solutions » Click!!!	To investigate the solubility of some substances in water and alcohol; to show the effect of temperature on the solubility of copper sulfate; to prepare a supersaturated solution of sodium acetate; to study the precipitation reaction.

17a. Preparation Solutions » Click!!!	Preparation of NaOH and HCl solutions.

18. Flame Test » Click!!!	Observe the characteristic colors produced by certain metallic ions when vaporized in a flame. Identify an unknown metallic ion by means of its flame test.

19. The Alkaline Earth Metals » Click!!!	Investigate some reactions of some Group 2 elements and gain some insights into the properties of these alkaline earth elements.

20. The Halogens » Click!!!	Learn about the relative activity of the halogens and the methods of separating halides in solution.

21. The "Aladdin's Lamp' Reaction » Click!!!	To produce cloud

22. The Heat of Reaction » Click!!!	To determine the heats of three exothermic reactions and investigate Hess’ Law.

23. The Rate of Chemical Reaction » Click!!!	To show how the rate of a particular reaction may be measured and to study the effect of changing conditions of concentrations and temperature on the rate.

24. Chemical Equilibrium » Click!!!	To learn how to recognize equilibrium state and what factors change the state of equilibrium.

25. Le Chatelier’s Principle » Click!!!	To study equilibrium system and their responses to stress as described by Le Chatelier’s principle.

26. The Solubility Product Constant » Click!!!	To determine the solubility product constant, Ksp, for PbCl2

27. Properties of Acids and Bases » Click!!!	To observe and study some typical properties and reactions of acids and bases.

28. Acid – Base Titration » Click!!!	To determine the molarity of a NaOH solution by titrating it with a standard HCl solution.

29. Oxidation-Reduction Reaction » Click!!!	To perform several reactions with metals to determine their relative strengths as oxidizing and reducing agents and to observe redox reactions involving two different polyatomic ions that behave as oxidizing agents.

30. Electrochemical Cells » Click!!!	To set up and test the voltage Zn / Zn²⁺ and Cu²⁺ / Cu cell

31. Copper Plating » Click!!!	To plate the surface of the key with copper.

32. Detection of Elements in Organics » Click!!!	To detect the elements quantitatively, that are most commonly present in organic compounds such as carbon, hydrogen, nitrogen and chlorine

33. Preparation of Methane Gas » Click!!!	To prepare methane gas from sodium acetate

34. Preparation and Reactions of Ethylene » Click!!!	To prepare ethylene from ethyl alcohol and sulfuric acid and observe some reactions of ethylene

35. Preparation and Reactions of Acetylene » Click!!	To prepare acetylene from calcium carbide and test some of the chemical properties of acetylene

36. Reactions of Ethyl Alcohol » Click!!!	To investigate the reactions of ethanol with potassium permanganate in acidic, basic and neutral media.

37. Preparation of Diethyl Ether » Click!!!	To prepare diethyl ether in the laboratory by heating ethyl alcohol and concentrated sulfuric acid.

38. Preparation of Acetaldehyde » Click!!!	To prepare acetaldehyde by the oxidation of ethyl alcohol.

39. Reactions of Acetaldehyde » Click!!!	To test some of the chemical properties of acetaldehyde.

40. Preparation of Formic Acid » Click!!!	To prepare formic acid from oxalic acid and glycerol.

41. Properties of Formic Acid » Click!!!	To test some of the properties of formic acid

42. Preparation of Acetic Acid » Click!!!	To prepare acetic acid in the laboratory by anhydrous sodium acetate and concentrated sulfuric acid solution.

43. Properties of Acetic Acid » Click!!!	To test some of the properties of acetic acid.

44. Preparation of Aspirin » Click!!!	To synthesize aspirin from salicylic acid and acetic acid.

45. Chemistry of Oils » Click!!!	To test some of the properties of oils.

46. Preparation of Soap » Click!!!	To prepare soap by the alkaline hydrolysis of fats and oils.

47. Reactions of Glucose » Click!!!	To test the reactions of glucose with Cu(OH)₂ and Ag₂O