The different methods of measuring acids and bases in a solution By Starsky Intro to Biology September 26‚ 2011 Lab Partners: Kristen‚ Tania and Betty Introduction When using different methods to measure pH levels there are some tools that can be useful. Some more than others but by putting into action the different methods it may determine which tools will work best and give the best
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your hand or the cleaning sponge inside‚ here is a quick solution to solve the problem. Just fill it up with hot water and then drop a tablet or two of Alka Seltzer. The tablets will do all the dirty work for you‚ dissolving all the dirt and residue. All you have to do is flush the water out and rinse it after fifteen minutes or so. In case you don’t have Alka Seltzer lying around you can substitute this with a homemade mixture. Simply fill your vase with lukewarm water‚ add in a full tablespoon of
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Name: Soo Jin Park Date: 03/30/2015 Exp 4: Properties of Gases Lab Section: 73426 Data Tables: Hydrogen Step B: Describe the zinc and acid reaction. As placing a small piece of Zn(mossy zinc) metal into the test tube containing the diluted HCI(Hydrochloric Acid) solution‚ gas bubbles rose from the solution slowly at the beginning and vigorously in process of time. As this reaction continued for a long time‚ transparent solution turned into white opaque color and black precipitates were formed
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MATERIALS Part 1. Effect of Particle Size solid zinc‚ approx. 0.5 cm × 2 cm‚ or solid marble chips zinc powder or calcium carbonate powder balance 2 test tubes 1M HCl (approx 10 mL per group) Part 2. Effect of Temperature 3 Alka Seltzer tablets 3 250-mL beakers water at three temperatures – with ice‚ room temperature‚ warm (around 70°C) Part 3. Effect of Concentration 1M HCl‚ 5 mL per group 3M HCl‚ 5 mL per group 6M HCl‚ 5 mL per group 3 pieces of zinc metal‚ each approx
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Experiment 2.6 was performed to see if the mass of a solid and liquid would change when it was converted to a gas. This was a chemical change because the unknown liquid and gas couldn’t be changed back into water and an alka-seltzer tablet. The reactants were an alka-seltzer tablet and water. The product was an unknown liquid and gas. Experiment 2.6 was a closed system lab because we didn’t want any mass to enter or
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as a catalyst. The reason collision theory relates to this experiment is due to the fact that the catalyst creates a higher activation energy and this causes more collisions‚ which increases the reaction rate. In the second experiment‚ the Alka Seltzer tablet was
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Lava Lamp Science Investigatory Project Submitted by: Keanu Kent B. Gargar IV – St. Ezekiel 10/7/13 Introduction A lava lamp (or Astro lamp) is a decorative novelty item‚ invented by British accountant Edward Craven-Walker in 1963. The lamp contains blobs of colored wax inside a glass vessel filled with clear liquid; the wax rises and falls as its density changes due to heating from an incandescent light bulb underneath the vessel. The appearance of the wax is suggestive
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1. Dancing Raisins Here’s another quick and easy science experiment. All you need is a glass of clear soda‚ such as ginger ale or club soda‚ and several small raisins. Fill a glass with soda. Leave about ½ inch (12.5 mm) of space at the top. Drop the raisins in. Those tiny bubbles attaching themselves to the raisins are carbon dioxide (CO2) bubbles. The irregular surface of the raisins enables a lot of CO2 to accumulate. When enough gas bubbles attach to the raisins‚ they act like tiny balloons
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Alka-Seltzer had the most drops of the acid‚ 0.1M HCl added to the antacids until it gave us a yellow color. This antacid had the most drops added was because when something becomes neutralized‚ this means that the sample is absorbing more hydrogen bonds and this is produced by the hydrochloric acid passed by the stomach. Based on these results‚ Alka-Seltzer would have to have a less dosage for the amount of antacid in a tablet since it neutralizes the most acid
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6.05 Logan Hotaling Materials Needed: 1. Alka-Seltzer 2. Glass 3. Water 4. Timer Procedure: 1. First you need to fill a glass up with 8oz of water and have it be 25 degrees Celsius. 2. Then you drop the Alka-Seltzer in the water and time how long it takes it to dissolve in the water. 3. Then we need to make the temperature go up then we need to drop the Alka-Seltzer in the water again and see how long it takes it to dissolve with the new temperature. 4. Now
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