Chemistry Essays, Research Papers & Term Papers (1,259) essays
Chemistry essays:
Natural and Common pH indicators experiment
... universal indicator, phenolphthalein, methyl orange, litmus, bromothymol blue. However, there are some indicators that are found in nature in the form of plant pigments known as anthocyanins, which change colour over different pH ranges, depending on source. For example red cabbage juice ...
Oxidation - Reduction. Range the metals copper, lead, silver and zinc together with hydrogen to find the strongest reducing agent.
... strips of; zinc, lead, silver and copper, solutions containing aqueous; Zn2+, Pb2+, Cu2+ and Ag+ ions (0.2 M), hydrochloric acid (5.0 M), emery paper, test-tubes. Method: Burnish the three metal strips to get a shiny surface, after drop a drop of each of the metal ion solutions on the cleaned metal ...
Lipid
... in the water and in the ether. C. 1 ml of soap solution + 1 ml of diluted HCl solution. In the test, we found that there are the white ppt. at the bottom of the tube. This kind of ppt. is also insoluble in the both water and ether. 3. Acrolein Test: Peanut oil Stearic acid ...
Sodium Hydroxide - Production
... in solution is extremely reactive. It reacts violently with numerous commonly encountered materials, generating enough heat to ignite nearby materials. Contact with several organic and inorganic materials may cause fire or an explosion. Because of its explosive nature ...
How Acid Rain Affects Plants
... by causing lakes to become acidic , therefore killing off this acid rain also prevents fish from reproducing. Acid also frees metals, which were held in rocks. Plants and algae also get affected from increased acid levels. Trees are also affected by acid rain ; the acid reacts with many nutrients ...
Fire.
... chemical reaction. We give below the description of such types of fire extinguishers. 1 ...
Atomic Enegy
... oil energy. By 1989, the emissions of carbon dioxide would have been 20 percent higher. The use of nuclear energy has prevented five million tons of sulfur oxide ( suspected cause of acid ...
Effects Of Electric Currents On Body
... in "tripping out". The types of tripping elements used in these circuit breakers are: 1. Thermal 2. Magnetic 3. Thermal-magnetic 4. Solid state or electronic. Thermal To achieve tripping a bi-metal strip ...
Analtical Chemist
... out of 100. This experiment is very similar to the experiment done by Earnest Rutherford. In his experiment he ... (target marbles), round stickers, and meter stick. Procedure: 1. Obtain 10 target marbles and some marbles. ... Experiment Purpose: The purpose of this experiment is to determine the number ...
How is hydrogen chloride produced in industry and lab, its uses and preacautions to its hazards
... acid. Hydrochloric acid is produced by dissolving hydrogen chloride in water which is shown by the following equation: HCl (g) + H O (l) =========== H O (aq) + Cl (aq) Hydrochloric acid is gaseous HCl or its aqueous solutions, since HCl is highly soluble in ...