...William Fort Mrs. Chambers Honors Biology, Period 3 31 August 2016 Alka-Seltzer Lab I. Abstract: In the lab, four Alka-Seltzer tablets were dropped into 150 mL beakers of water at four different temperatures. After the time it took for each tablet to dissolve was recorded, a clear trend was revealed within the data. This trend demonstrated that the water’s temperature corresponded with the rate of which the tablet dissolved; if the water’s temperature was warmer, the Alka-Seltzer would dissolve more quickly. The quickest trial, in 90°C water, took only 20.75 seconds for the tablet to dissolve, compared the longest, in 15°C water, which took 36.65 seconds. This data is applicable to the real world, giving this study scientific importance....
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...Alka-Seltzer tablets are little flat circles that, when placed in water, fizz. These tablets are used for relief of headaches, pain, heartburn, indigestion, and many more. The tablets fizz in water because the sodium bicarbonate and citric acid in the tablets are reacting and producing carbon dioxide bubbles. In our lab we tested the affect of different temperatures and acidity levels of water on the speed of the reaction of the Alka-Seltzer tablet. My hypothesis for the lab on how different temperatures or amounts of acid affect the reaction time of Alka-Seltzer tablets was, "If Alka-Seltzer reaction is related to temperature or acidity of water, then the warmer the water the faster the reaction." I support this hypothesis because when looking...
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...A chemical reaction is where two or more substances come together and pops, fizzes, and in some cases explode! Alka Seltzer is a type of chemical reaction where you put water and carbon dioxide gas. Equation . When Alka-Seltzer tablets are dissolved in water, bicarbonate forms (from the sodium bicarbonate), which in turn reacts with hydrogen (from citric acid) to form water and carbon dioxide gas. “ In The bicarbonate reaction project you will find out for yourself by plopping Alkaseltzer tablets into water at different temperatures, and timing how long it ta of the bicarbonate reaction? In thiS how is temperature related to this bicarbonate reaction? In order for the reaction shown above to occur, the bicarbonate ions have to come into contact with the hydrogen ions.” Molecules in a solution are in constant motion, and are constantly colliding with one another. The hydrogen and bicarbonate ions must collide at the right angle and with enough energy for the reaction to occur. The temperature of a solution is a measure of the average motion (kinetic energy) of the molecules in the solution. The higher the temperature, the...
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...and life history evolution. Since it is easy to care for, has 4 pairs of chromosomes, breeds quickly, and lays many eggs, the fruity fly is used for numerous studies. In this lab, fruit flies are to be examined to study heredity. With each new generation, probability, protein synthesis, and the principles of DNA, are all able to be seen within this experiment. For this lab, wild fruit flies will be bred with scarlet fruit flies. The trait to be examined in this lab is the eye color. Wild fruit fly's’ eye color (red) is a dominant trait. The scarlet fruit flies have scarlet eyes, and it is a recessive trait. Fruit flies are very small, but their eyes are complex. They have compound eyes. One eye contains hundreds of light-sensing units called ommatidia. Each ommatidia has a lens and a set of light-receptor...
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...Daphnia Magna Lab Report Katherine Schmucker WCCC/Semester 2 A&P 2/Bio-072 Dr. Matthew Sisak February 6, 2015 Introduction: The substances that were applied to the Daphnia were aspirin, nasal spray, adrenalin, acetylcholine, and alka seltzer (College, p. 42). Aspirin’s active additive is acetyl salicylic acid (Henderson, n.d.). The nasal spray’s active additive is “therapeutic (Administration, 2002).” Adrenalin’s active additive is “acid tartrate (Agency, n.d.).” Acetylcholine contains “5-methyl tetrahydrofolate, huperzine A, and alpha-tocotrienol (Research, 2015).” Alka seltzer’s active additive include aspirin, sodium bicarbonate, and citric acid (Alka-Seltzer Effervescent Tablets Original,...
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...The Effect of Alka Seltzer on Water Background Information Alka Seltzer can be used as a pain reliever and an antacid. Baking soda or sodium bicarbonate is the active ingredient in antacids. Citric acid is also used in antacids, providing hydrogen ions. When antacid tablets are dissolved in water, they produce bubbles, or carbon dioxide. Sodium bicarbonate splits apart to form bicarbonate and sodium ions. Bicarbonate ions then react with hydrogen ions to form carbon dioxide gas and water. For the reaction to happen, the bicarbonate and hydrogen ions must come into contact with each other. The contact is affected by the temperature. The higher the temperature, the faster the molecules move. In cold conditions, the molecules move at a slower...
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...common Antacids that was used in the lab: Rolaids, Maalox, and Tums. Some don't know that these antacids have at least one of these ingredients: aluminum, Calcium, magnesium, and sodium ( Directly on the back of the products). The aim of this experiment was to evaluate and test the effectiveness of antacids. Hypothesis: All antacid will not be equally effective because they all have different ingredients. Introduction: Within this experiment, the three different antacids was chosen: Maalox, Rolaids, and Tums. To get started we had to crush one antacid and add it to 100 ml of distilled water in a beaker. We did all three antacids separately, but made sure that all three antacids dissolved properly, meaning you don't see some on the bottom of the beaker. By using a stirring rod, stirring can help dissolve the antacids. We had to transfer the three different antacids into three separate test tubes with a pipet adding 5 mL of antacids solution. When we done this we then had to add 4 drops of bromcresol purple to the test tube. Bromcresol purple is a pH indicator. Then we had to add 0.1 M hydrochloric acid to the three test tubes, we had to mix after every drop. this was repeated until we say the solution turn yellow. which indicated an acid occur. Each antacid had different numbers of drops to turn yellow. we recording it in our chart. Antacids Active Ingredient # Drops of HCL Added | Alka Seltzer | NaHCO3 | 130 | Tums | CaCo3 |...
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...Materials • Daphnia Magna • Microscope • Depression slide • Eyedropper • Substance: Asprin, Adrenelin, acetylcholine, sleeping pills, coffee, alka seltzer. B. Methods 1. Obtained a microscope, depression slide and eyedropper. 2. Used eyedropper to capture Daphnia from stock culture and placed it on the depression slide. Placed slide onto the microscope stage. 3. Adjusted microscope on the 4x objective to find Daphnia and locate the heartbeat. 4. Monitored the heartbeat for 15 seconds and multiplied the number by 4 to get the beats per minute. Recorded data on the table. 5. Obtained aspirin and placed two drops onto the slide with Daphnia. 6. Monitored the heartbeat for 15 seconds and multiplied the number by 4 to get beats per minute after substances was used. Recorded the data. 7. Used eyedropper to remove the Daphnia from the slide and returned to post experiment jar. 8. Repeated steps...
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...strong acid within the stomach known as hydrochloric acid (HCl). HCl is essential as the body uses it to digest the food that comes in. Through this process is how humans can break down all the food eaten to take in the nutrients necessary for survival. The pH balance within the stomach can be disrupted depending on which foods the person chooses to consume. People can also have genetic predispositions to easily upsetting the pH balance within their stomach (Madell, 2012). At an average of a pH 3, the stomach may fall below that level and cause uncomfortable symptoms for which pharmaceutical companies created the antacid. The purpose of antacids is to neutralize stomach acids. An example of such an antacid would be the brands Tums or Alka-Seltzer. There are many other brands that provide acid indigestion relief to customers but there is always one that has a better record at relieving symptoms quicker and stronger. To determine which of four brands neutralizes the drop in pH in the stomach best, a titration technique was used. Phenolphthalein was used as an indicator because of its correlation of color change with pH level. In basic conditions, it is pink and as soon as it becomes acidic it turns clear. The goal was to find the lightest shade of pink which indicates it is right past the neutral point. Using this data, we can find which antacid could provide the best neutralizing effect. Finding out which antacid works better allows for the consumer to know where to allocate...
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... TELL YOUR FRIENDS... Send Report Submitted: June 21, 2013 Title: Properties of Gases Purpose: To analyze a few physical and chemical properties of gases as well as using those properties to identify the gases. Procedure: * For Hydrogen I placed a piece of Zn metal into a test tube with diluted HCl. * To produce oxygen I added Hydrogen peroxide to manganese. * Next, I added baking soda to vinegar. This caused a quick and energetic reaction! The gas from the reaction I pumped into some Limewater. * Then I mixed Alka Seltzer and water and pumped the gas caused by that reaction into some limewater. Data: Data Table: Experiment Results | Gas | Flame Reaction | Glowing Splint | Limewater reaction | Bromothymol blue reaction | Hydrogen | It enlarged the flame. | | | | Oxygen | It lit up quickly | | | | Hydrogen & oxygen | It puts it out. | | | | Carbon dioxide | It puts it out | | It bubbled and turned cloudy. | It turned it yellow | Alka Seltzer | | | Bubbles stayed in the limewater. | | Breath | | | Nothing happened | | Balanced Chemical Equation for Oxygen and Hydrogen: 2H2+O2 2H2O Observations: * The hydrogen reaction moved very slowly and I really couldn’t see anything happening. However, when I exposed it to flame, it lit up very well! * The oxygen reaction began immidiatly once I added the manganese. It started fizzing a lot and the liquid turned...
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...Chemistry Lab 12/10/11 PURPOSE The purpose of this lab is to see the physical and chemical properties of gases and to be able to use these properties to identify these gases. PROCEDURE To start I diluted 6M HCl by pouring 6ml of distilled water in a graduated cylinder. I added drop by drop 3ml of HCl directly from the bottle. The mixture was mixed well and the diluted 9ml solution was added to the test tube. Hydrogen: I placed a place of Zn metal in the test tube with the diluted solution. I then capped the test tube with a rubber stopper with a short, straight plastic gas delivery tube through the center. The test tube was then placed into one of the wells on the well plate. The test tube had to be upright so it was necessary to wrap the tube with a piece of paper towel to hold it into place. Reaction was observed and recorded. A pipette bulb was filled with water and placed on top of the test tube’s gas delivery tube. The well plate with the test tube was placed in the tin while the gas displaced some of the water. When the water in the pipette was completely replaced by the gas I quickly removed it and placed my finger over the opening to prevent any gas from escaping. I lit a match and gently squeezed out some of the gas and observed and recorded the reaction. I then took a marker and marked 3 equal parts on the pipette. The pipette was again filled with water and placed on the gas generation tube like previously. When the bulb was 2/3 filled with...
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...too much of the solution or too little of the solution compared to other brands. I titrated a solution that had a pH that was similar to the human stomach and tested four brands of popular antacid tablets. The four brands were Pepcid AC®, Zantac 75®, Rolaids®, and Alka Seltzer®. Rolaids® was the only brand that did not neutralize the solution. The other three antacid tablets did work and I decided that antacid tablets are effective in neutralizing the human stomach since they did not neutralize all of the stomach solution or they did not just neutralize a small amount of it. This experiment was all relative to the other tablets, because I had no background information on what defines an antacid tablet to be effective so I had to base it on the results of the other tablets. Rolaids® took an irregular amount of stomach solution compared to the other tablets to neutralize, so I based my results on this observation. Introduction The purpose of doing this project was to figure out if antacid tablets work effectively since there are many tablets out there on the market. I predicted that the antacid tablets will neutralize the stomach solution I made and therefore be effective. I worked in the Breck School Science Lab under the supervision of Ms. Lois Fruen, Ms. Johnson, and Ms. Gilbert. Purpose By titrating with a solution that is similar in acidity to the human stomach, I figured out which antacid tablet works best without neutralizing too much or too little of the solution...
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...The experimenters put on their protective goggles and started the experiment. The first step was for one participant to put approximately 10 mL of the .1 M HCl solution in the test tube with side arm. Getting the correct 10 mL was not important as long as it was close to it. Then the test tube was placed inside the Erlenmeyer flask to which kept the test tube up right. After this was done the lab participant put together the “Apparatus” which consisted of the test tube with side arm inside the flask, a stopper, and HCl solution inside the test tube. The second step was for one of the lab participants placed the gas-generation solid that the teacher provided on to a balance to be weighed. This gas-generation solid was ¼ part of an Alka-Seltzer tablet. The apparatus was also weighed, and the mass of the apparatus was combined together with the mass of the gas-generating solid. This created the starting mass before the reaction took place and was recorded into the lab notebook....
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...Properties of Gases Peter Jeschofnig, Ph.D. Version 42-0189-00-01 Lab Report Assistant This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s questions, diagrams if needed, and data tables that should be addressed in a formal lab report. The intent is to facilitate students’ writing of lab reports by providing this information in an editable file which can be sent to an instructor. Observations Make a table of the gases studied. Tabulate their colors, the effect on lighted or glowing splints, and other properties one might use to identify them. | | |Data Table: Experiment Results | |Gas |Flame |Glowing |Limewater |Bromothymol | | |reaction |splint |reaction |blue reaction | |Hydrogen |Bright orange | | | ...
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...LAB REPORT CH-114A Experiment: Properties of gases. Objectives: The objective of the experiment is to see the physical and chemical properties of gases and how to identify the gases when you have to encounter them. OBSERVATIONS: The things I observed during this experiment were bubbles and color change. DATA: Gas Flame reaction Glowing splint Limewater reaction Brothothymol blue reaction Hydrogen: Flame got bigger with popping Flame went out Light brown color Green color Oxygen: Flame lit up quickly Reignited Color red Color blue Hydrogen and Oxygen: No reaction Flame went out Brown color Greenish blueish color Carbon dioxid- No flame No flame Bubbles and then it turns cloudy Bubbles and then it turns yellow Alka Seltzer: Quickley bubbled Breath: No reaction Quickly bubbles and turns cloudy No reaction Turns blue CALCULATIONS: CONCLUSION: In this experiment it made me learn that reactions are way different when you compare them as acidic or basic. QUESTIONS: 1. Give two reasons why we fill the gas generator test tubes almost to the top with chemicals. -We want to make sure we minimize the amount of air so the gas will stay pure, also, some gases react differently with air. The less space so it will less likely affect the results. 2 What happens to the zinc in the hydrogen generation experiment? -The zinc dissolves. 3. What happens to the manganese in the oxygen generation experiment...
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