reaction. Lead nitrate and potassium are both transparent but when they mix t changes to a yellow color. 3. Magnesium metal and hydrochloric acid solution Place one scoop of magnesium turnings into the test tube. Add hydrochloric acid slowly and observe the reaction. Next‚ place a burning splint near the mouth of the test tube to test for the presence of hydrogen gas. When magnesium and hydrochloric acid are mixed it starts boiling. 4. Electrolysis of water Use a U-tube with electrodes at each
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of Zinc‚ two strips of Copper‚ three strips of Magnesium‚ steel wool‚ Lead nitrate‚ Silver nitrate‚ Copper sulfate‚ Magnesium chloride‚ Zinc chloride‚ Sodium chloride‚ and Potassium. V. Procedure: In tube 1 add five drops of Lead nitrate. In tube 2 add five drops of Silver nitrate. Drop a strip of copper metal into tubes 1 and 2. Next add five drops of Copper sulfate into tube 3‚ five drops of Lead nitrate into tube 4‚ and five drops of Magnesium chloride into tube 5. Next drop a strip of zinc
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requirement was to be able to calculate each Average reaction rate which is the change in reactant or product concentration at a given time interval. Some equations that were required for this lab is the basic equation to determine the moles of magnesium for each piece in the lab. This formula is n=m/M. This is moles‚ which is equal to mass over Molar mass. Another equation used in this lab was the rate equation‚ which is rate=mol/s. This is rate‚ which is equal to moles over seconds. The average
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WORKSHEET MOLE By Sir Shah Murtaza Q1. Potassium reacts with water as shown in the equation. a. Describe what you would see when potassium reacts with water. b. A sample of 0.195 g of potassium was added to 500 cm3 of cold water. When the reaction was finished‚ 100 cm3 of 0.100mol/dm3 hydrochloric acid was added to form solution X. (i) Calculate the number of moles of hydroxide ions formed when the potassium was added to water. (ii) Calculate the
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coming in contact with these kinds of products‚ such as magnesium and gasoline. According to Robert Vettori‚ “Magnesium has a strong affinity for oxygen that it attracts the oxygen from oxygen containing compounds” (5). With this said‚ it shows that the two products burning are both magnesium and an adequate supply of oxygen. The National Fire Protection Association Fire Protection Handbook expresses that water may used to extinguish magnesium fires if it can be applied very quickly as well as in
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concentrated the reactant‚ the faster the rate of reaction. Materials: 2M hydrochloric acid solution‚ magnesium wire‚ distilled water‚ 4 test-tubes‚ measuringcylinder. Procedure:1)10mL 2M hydrochloric acid solution is poured into a test-tube using a measuring cylinder. 2)A 3cm length of magnesium wire is added to the acid‚ and the stopwatch is started simultaneously. The time it takes for the magnesium to disappear into solution is recorded. This time is recorded in the results table. 3)The test-tube
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Chloride‚ 2 M - 3 mL in Pipet 1 Iron Metal‚ 2 pc in Bag 2"x 3" Magnesium Metal (ribbon) - 2 Small Pieces in Bag 2"x 3" 1 Magnesium Sulfate‚ 2 M - 3 mL in Pipet 1 Lead metal‚ 4 small pieces in bag 2 x 3” 1 Sodium Sulfate‚ 1 M - 3 mL in Pipet 1 Zinc Metal - 2 Small Pieces in Bag 2"x 3" 1 Zinc Nitrate‚ 2 M - 3 mL in Pipet Procedure 1. Place 10 drops of Sodium sulfate‚ Na2SO4 into well A1 of the 24-well plate. 2. Place 10 drops of Magnesium sulfate‚ Mg SO4 into well A2 of the 24-well plate. 3. Place
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pieces of paper. Put two pieces of magnesium ribbon on the paper labeled “Magnesium”. 2. Examine each substance with a magnifying glass. Record observations in Data Table 1. 3. Test the effect of a magnet on each substance by passing the magnet under the paper. 4. Test the solubility of each substance by mixing small amounts in a separate test tube with 3mL of distilled water in it‚ then “flick” each tube to mix the contents. 5. Return strip of magnesium in test tube to its paper. Follow
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than others (1)Hard water is any water containing an appreciable quantity of dissolved minerals. (2) Some of the minerals come from chalk‚ limestone or marble‚ which the water may have flowed over or through. (4) Hard water contains calcium or magnesium ions. Limestone‚ marble or chalks are insoluble in pure water however they will dissolve slowly in acidic rain. If your water has emerged through limestone or chalk (calcium carbonate) it will be hard. (1) Soft water is gratification water in which
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nitrate and potassium iodide solutions Pour about 2.0 mL of lead (II) nitrate into the test tube. Add 5 to 10 drops of potassium iodide solution to the test tube and record your observations of the reaction. 3. Magnesium metal and hydrochloric acid solution Place one scoop of magnesium turnings into the test tube. Add hydrochloric acid slowly and observe the reaction. Next‚ place a burning splint near the mouth of the test tube to test for the presence of hydrogen gas. 4. Electrolysis of water Use
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