'Alka-Seltzer Reaction Rates Lab\r'

'Alka-Seltzer Reaction place Lab What atomic number 18 the contrary factors the effect the answer ordinate of Alka-Seltzer? Matthew Arkfeld Leah Gilligan Jessie Abbott Period 4 June 2nd, 2008 Background look for: o The objective of the experiment was to determine if different factors put on the reaction lay of Alka-Seltzer. Alka-Seltzer provides fast suspension to acid indigestion, upset deport, heartburn, headaches, body aches and annoyances. It is an antacid and pain relief medicine used by millions of consumer’s everyday. It is sold at local pharmacies over the replication and supermarkets worldwide. The original Alka-Seltzer was invented in 1931, the prompt ingredients are: 325 mg of Aspirin, 1000mg of Citric Acid and 1916mg of Sodium Bi light facilitateate, designed to care pain and simultaneously neutralize excess stomach acid. It is provided in the form of large effervescent tabloids, which are dissolved in a glass of piddle. As the pads dissolve, the base (bicarbonate) and the acid (citric acid) react vigorously producing carbon dioxide gas, which also produces enough agitation to onlyow the active ingredients to dissolve slowly. In our lab, our objective was to test if water at different temperatures, salt, and vinegar, would affect the reaction rate of Alka Seltzer tablets. However we thought, that the size of it of the tablet would non matter. Therefore, we decided to test Alka Seltzer broken into section and completely ground up as hygienic as the normal tablet. conjecture and Variables: o Hypothesis: We believe that hot water, and vinegar will affect the rate of the reaction, however, the size of the tablet does not matter. commutative Variables: temperature of water ( scrap, manner, hot), Size of tablet ( safe and sound, pieces, powdered), Solution it is in ( work stoppage, vinegar, salt water). o Dependent Variable: The rate of reaction of Alka-Seltzer. Materials: o 3-quart size jars, 3 Alka-seltzer tablets, ice water, elbow room temperature water, hot water, stopwatch, thermometer, vinegar, salt, tablespoon. Procedure: 1. guide mavin of the jars a third of the track with ice. Put tap water in it until it is fractional way serious. allow it come to a stable temperature. 2. Fill the foster jar half way filled with room temperature water. . Fill the third jar half way with hot tap water (run tap on hot for unity minute). 4. Use the thermometer to record temperature for the one-third waters. eternise in table. 5. Put an Alka-Seltzer tablet in each jar and use a stopwatch to record how many seconds it takes to dissolve. Do not pertain or mix the tablet! Record all results. 6. Put all the liquids down the drain and purify out jars throughouly with water. 7. Fill the jars half way with room temperature water. 8. In the first jar, place a self-colored Alka seltzer tablet. Record the date it takes for it to completely dissolve. 9.\r\n duplicate step 9 with the Alka seltzer broken int o 8-10 pieces. Record the time it takes to dissolve. 10. Repeat step 9 with the Alka-Seltzer tablet completely crushed into powder. (Crush betwixt two pieces of constitution with a hammer) Record the time it takes for it to completely dissolve. 11. wipe all jars completely and throughout again. 12. Fill one jar half the way with room temperature water. Fill another jar one half full with vinegar. Finally fill the last jar half way with salt water. (2 tablespoons, room temperature). 13. Pour an Alka-Seltzer tablet in each jar and record time it takes to completely dissolve. 4. Observe your results. Observations and info: | |Water Temperature | clock to Dissolve | |Ice Water |1 breaker point f |155 seconds | |Room Temperature |74 degrees f |47 seconds | |Hot Water |110 degrees f |24 seconds | | beat to Dissolve | |Whole Alka-Seltzer |45 seconds | |Broken into Pieces |40 seconds | |Powdered |11 seconds | |Time to Dissolve | |Tap Water |46 seconds | | vinegar |68 seconds | |Sal t Water |77 seconds |\r\nData Analysis: o We observed that a whole piece takes more time to dissolve in water than an Alka Seltzer completely ground up. As tumefy as, temperature changes the speed of the reaction in the adjournment process. Finally, vinegar, and salt, slow down the reaction time between the tablet and water. Conclusion: o We discovered that it is best to take Alka seltzer with hot water in order to dissolve the tablet the quickest.\r\nAs temperature decreases, the occur of time that th reaction takes increases. As well as, adding other components such as salt and vinegar slow down earlier than speed up the reaction. Therefore that rection is best in water at a high temperature. o Our hypothesis was wrongly in that, seltzer-seltzer in different shapes affcts the reaction rather than not causing any difference in it. Sources of Error: Temperature could have been off, thermometer was broken, and tap water at room temperature was affected by air conditioning. exe rcise: o Through this experiment we have wise to(p) that temperature affects the reaction rate of Alka-Seltzer tablets. As well as, size and solution dissolved in, can either speed up or slow down the reaction. For windy results, Alka-Seltzer should be broken up into powered pieces and be taken with hot water.\r\n'