Add the alka seltzer tablet to the beaker with water, and wait for all fizzing to stop. When you add water, the acid and base react and give off carbon dioxide gas. Preschool science saturday science blog hop alka seltzer, oil and water science experiment. This overthecounter medication is taken differently than most others since it is added to water before ingesting, rather than being washed down with the water. Use two alka seltzer tablets and determine what the temperature extremes are and the rate of reaction. For each of the four particle sizes, you should repeat the experiment three times for a total of 12 trials. Alkaseltzer tablet foam cup,8oz balance, readability. The activity also provides a representation of leo, meo, and geo orbits. Using the mass difference, you will determine the mass lost by the process, and thus the mass of co 2 produced. To determine the amount of nahco 3 in alka seltzer tablets by observing the amount of co 2 produced from the acid base reaction of hco 3with acetic acid in vinegar. When the alka seltzer was dropped into the water, a reaction was created that produced carbon dioxide. Start by sealing the end of the cardboard tube with several pieces of duct tape or use a plastic tube with one end sealed. Alkaseltzer analysis lab purpose the purpose of this lab was to determine the content of sodium hydrogen carbonate.
The oil stays above the water, since it is less dense than the water. If you look at the ingredients for alka seltzer, you will find that it contains citric acid and sodium bicarbonate. Reaction rate sa instructional slide show final 170710. As you can see from some of the pictures here, our alka seltzer rocket with the most tablets flew the farthest. When an alkaseltzer tablet is dissolved in water, the bicarbonate hco. You will submit a typed, formal lab report, including all pre lab and post lab assignments. Examination of many general chemistry lab manuals in use today reveals that if an experiment that involves gas law cal culations is included, it is almost without. Balance zip lock baggie alkaseltzer tablet water electronic balance.
Determination of % nahco3 in alka seltzer tablets objectives. An experiment was set up to collect the co 2 gas given off during the reaction of alka seltzer tablets in hydrochloric acid. To determine the amount of nahco3 in alka seltzer tablets by observing the amount of co2 produced from the acid base reaction of hco3 with acetic acid in vinegar. Measure the time required for the reaction to be completed. Drop 1 whole tablet into the beaker and start the timer. Concentration and error analysis of the mass of alkaseltzer. Hands down the alka seltzer rocket strategy was far easier to maneuver and to keep the kids engaged. Make a paper rocket propelled by alka seltzer and water.
Its main function is to absorb excess stomach acid hcl. Lets investigate this addition of alka seltzer to water. In this lab, youll investigate how increasing the temperature of water, affects the time it takes for. Alka seltzer and the ideal gas law lab write up chemistry. Alka seltzer lab report alka seltzer lab report introductionpurpose as a learner, i am very fond of observing chemical reactions especially materialssubstances that dissolve and create bubbles. The tablets are thin and brittle, so they break easily. Over the plastic table cloth, pour water into a film canister until it is about. To show this reaction, a balloon that contained the crushed up alka seltzer was placed on top of a large test tube that contained water. It guides the students through each step of the process to ensure students are engaged and succe. Alka seltzer rocket heres a clever variation of the classic pop your top activity, but this time you launch the bottom of the film canister like a rocket. Put 1 alka seltzer tablet in 100 ml of cold water and use a stopwatch to record the amount of time it takes for the alka seltzer tablet to dissolve.
Frist break a tablet of alkaseltzer into 4 equal pieces. Obtain 1 alka seltzer or 3 tums tablets and crush them in the crucible. Methods this experiment can be split into two sections. Once there is too much gas, the force of it pushes off the cap. This provides a good contrast between a physical and chemical change. Alkaseltzer reaction rates lab what are the different factors the effect the reaction rate of alkaseltzer. Alka seltzer fizzingdetermination of percent by mass of nahco3. Cold water fill a beaker with exactly 40ml of ice water from the bucket at the front of the room. Effervescence laboratory experiment instructors version date. Stop use and ask a doctor if an allergic reaction occurs. Drop the whole alka seltzer tablet into the beaker and time how fast it dissolves 2. Introduction alka seltzer is an overthecounter antacid and pain relief medication that is taken by dissolving it in water before ingesting. Make a paper rocket propelled by alkaseltzer and water. The student lab sheet alka seltzer lab is included here in the resources.
You will submit a typed, formal lab report, including all prelab and postlab assignments. Empty film canister with lid that snaps inside markers, crayons or colored pencils tape scissors original effervescent formula alkaseltzer tablets water. In this lab, you will collect the gas given off from a sample of alka seltzer. Browse the latest lab supplies and equipment for all your science lab essentials. When an alka seltzer tablet is dropped into water, an acidbase reaction between the citric acid. Spot test lab this activity will give you practice in identifying some overthecounter drugs with spot tests. How much time do you think it will take for an alka seltzer tablet to dissolve disappear when dropped into 150ml of water at room temperature, in ice water, and in hot water.
Dec 15, 20 preschool science saturday science blog hop alka seltzer, oil and water science experiment. Fill a flask 50125ml flask to overflowing with tap water. With the soda, the co 2 is produced as a result of vigorous shaking. Guaranteed fun for the whole family with the exception of the dog. I ask for volunteers and they let me know that it is to test the factors that affect reaction rates. Just a few simple and common ingredients and you are. Alka seltzer is sometimes taken for acid indigestion. This lab uses the alkaseltzer original tablets that contain aspirin acetylsalicylic acid, c 9 h 8 o 4, citric acid c 6 h 8 o 7, and sodium bicarbonate nahco 3. Alka seltzer is one of the worlds bestknown antacids. Use the bayer emergency number in section 1 first aid other. Alka seltzer is an effervescent tablet that contains aspirin acetylsalicylic acid.
Make sure safety glasses and examination gloves are on before entering the lab. The gas builds up in the canister and pushes on it. Shop carolina s variety of lab equipment including microscopes, glassware, dissection supplies, lab furniture and more. Learn alka seltzer with free interactive flashcards. Particle size and the rate of reaction alkaseltzer. Stop the time when the entire tablet has dissolved. In this lab, you will determine how surface area affect the rate at which materials weather. You need to have four whole tablets for this experiment. Alka seltzer lab is the perfect introduction for students learning about scientific method and writing lab reports. Effervescence laboratory experiment instructors version. Heres another wonderful saturday science preschool science experiment that is easy to set up and fascinating to watch. Through this experiment, knowledge was also gained in gas laws and gas behaviors. Try various water temperatures and see if the observed temperature changes are linear or exponential.
The moment the tablet starts dissolving, a chemical reaction occurs that releases co2 gas. Set aside any remaining alkaseltzer for the other trials. This will come at the front of the lab, but should be the last thing written. How can you get the alkaseltzer to dissolve fastest. Drop an alka seltzer tablet into tall transparent glass and observe. To understand gas laws and the rate of reactions hypothesis. Alkaseltzer or other type of effervescent tablets at least 6 per group. Matthew arkfeld leah gilligan jessie abbott period 4 june 2nd, 2008 background research. Determination of % by mass of nahco in alkaseltzer tablets. In this lab, alka seltzer an antacid that prevents upset stomachs, acid indigestion and headaches, inspired me to create an experiment on it. What will weather faster, a broken alka seltzer or a whole one.
After 34 minutes i ask students the goal of the lab. The idea came from a newspaper editor in elkhart, indiana. Working with your partner, collect the necessary materials and bring them to your table. Scientists use balanced equations to determine precise amounts of chemicals to use or produce in chemical reactions. Original effervescent formula alka seltzer tablets. Step 2 the solution bubbles and the alka seltzer tablet disappears. Lately, we have been focusing on a lot of simple science experiments with water. The force of the gases pushes down on the floor, but the rocket goes up in the. The alka seltzer tablet sinks to the bottom, dissolving in the water, creating a gas. Qualitative observations tablet was chipped when the tablet was dropped water splashed out hard to know when reaction finished the mass of alka seltzer might have been different analysis. Using the ideal gas law, you will determine the mass of gas produced and from that the percent mass lost when alka. Alkaseltzer is one of the worlds bestknown antacids. If this makes any sense to you then you are clearly a genius. Alkaseltzer tablet foam cup,8oz graduated cylinder, 100ml 5% vinegar, 35 ml balance, readability.
Describe and classify what you see by its observable properties. If the pdf does not display below, you may also download it here. Alka seltzer analysis alkaseltzer analysis lab purpose. Produce a quick and moving rainbow of colors with an alkaseltzer tablet and a little vinegar. Observe and record what you see in your lab report for part c and answer the questions. As we increased the amount of alka seltzer in the container, we definitely noticed a stronger reaction taking place. How much time do you think it will take for an alka seltzer tablet to dissolve disappear when dropped into 150ml of water at.
Will alkaseltzer tablets dissolve faster or slower in carbonated water compared to regular water. Alka seltzer lab report by claire niewiara on prezi. Seek medical help right away, or if you experience any of the following signs of stomach bleeding. It guides the students through each step of the process to. Alka seltzer lab part 1 effect of surface area on weathering rate materials 2 beakers 3 alka seltzer tablets room temperature water timing device sheet of paper procedure 1. Determination of % nahco 3 in alka seltzer tablets. Alka seltzer lab effect of surface area on weathering rate materials 2 beakers 3 alka seltzer tablets room temperature water timing device sheet of paper procedure 1. Waste disposal should be in accordance with existing federal, state.
Why do you think the solution had to be heated to drive off the remaining co 2. Lab documentation student handout stoichiometrydetermination of percent by mass of nahco3 in alka seltzer tablets i. Surface area of an alka seltzer tablet introduction. To do this i first pass out the alka seltzer and rates lab paper.
Choose from 15 different sets of alka seltzer flashcards on quizlet. This carbon dioxide rose and ultimately inflated the balloon. In this lab, you will collect the gas given off from this reaction. Alkaseltzer provides fast relief to acid indigestion, upset stomach, heartburn. In this lab you will be reacting sodium bicarbonatean ingredient in alka seltzer with acetic. Alka seltzer poppers concepts kinetics, chemical reactions, gases, solubility expected student responses to exploration step 1 the active ingredients in alka seltzer are sodium bicarbonate, citric acid, and aspirin acetylsalicylic acid. Alka seltzer and factors that affect reaction rates. The tums will almost always be significantly cheaper. The attached graph shows the proportionality of the amount of water to the amount of time it took to complete the reaction. The stoichiometry of alkaseltzer this lab will count as your honors project. To study and apply the concept of stoichiometry to measure the amount of a substance consumed, by measuring the amounts of products formed in a chemical.
Seltzer rocket lab big idea students will learn about the engineering process while conducting and observing three launch altitudes using film canister seltzer rockets. Alkaseltzer or generic effervescentantacidandpainrelieving tablet vegetable oil water tall clear plastic container 1 or 2 liter bottle food coloring neon colors work well procedure 1. Alkaseltzer lab report alkaseltzer lab report introductionpurpose as a learner, i am very fond of observing chemical reactions especially materialssubstances that dissolve and create bubbles. I then give students several minutes to read over the lab on their own. Alka seltzer and the ideal gas law purpose when alka seltzer reacts with water, co 2 gas is produced. This lab uses the alkaseltzer original tablets that contain aspirin acetylsalicylic acid, c9h8o4, citric acid c6h8o7, and sodium bicarbonate nahco3. The fizzing you see when you drop an alka seltzer tablet in water is the same sort of fizzing that.
With an alka seltzer tablet, the co 2 is produced as a result of a chemical reaction. Determination of % by mass of nahco 3 in alka seltzer tablets learning objectives. Alkaseltzer lab effect of surface area on weathering rate. Inside the alka seltzer tablet is an acid and a base. Evan clemente anabella fernandez harmoni mills ioanna papadaki jacqueline petasne jarlynn ramirez brandon rasool lab. Alka seltzer alka seltzer rockets supplies original effervescent formula alka seltzer tablets water empty film canister with lid tape measure or meter stick markers, colored pencils, or crayons tape 5x8in.