30 minutes. Resources: | Rationale: | Clear plastic bottle. 3/4 cups of water. Vegetable oil. Food colouring. Alka –Seltzer tablets. | Get your clear plastic empty bottle‚ put 3-4 cups of cold water into the bottle‚ then add the vegetable oil till its nearly full up to the top‚ then add 10-15 drops of food colouring‚ after that add 1 or 2 alka-seltzer tablets and watch the effect happen. Finding out about the density of water and oil. | Learning Outcomes for the Children from
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MT-11 02/20/15 Investigatory Project in Chemistry How Green Algae Can Be One of the Best Ways to Help Reduce CO2 Concentration in the Atmosphere Members: Urrutia‚ Maria Veronica S. Sevilla‚ Ruth Consuegra‚ Donita Reloj‚ Mary Roschael Dela Cruz‚ Samantha Claire Introduction Some hope fertilizing tiny‚ floating plants in the ocean‚ prompting them to suck carbon dioxide out of the air
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investigating is the reaction that occurs when an Alka-Seltzer tablet is placed into a given amount of water. Alka-Seltzer is an over-the-counter antacid and pain relief medication that is dissolved in water before it is ingested. Each tablet contains aspirin (acetylsalicylic acid)‚ citric acid‚ and sodium bicarbonate. As the tablet dissolves in water‚ the bicarbonate ions in the tablet react with the hydrogen ions from the acids that are also contained in the tablet. The carbon dioxide gas that is produced
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KATE FITZPATRICK YEAR TWELVE BIOLOGY TERM ONE _(www.happycow.net)_ "TO TEST THE EFFECTS OF ANTACIDS ON PEPSIN’S ABILITY TO DIGEST PROTEIN." _CONTENTS_ 1.0 Abstract Pg 2.0 Introduction · 2.1 Aim · 2.2 Background Information · 2.3 Hypothesis PG · Pg · Pg · pg 3.0 MATERIALS · 3.1 Equipment · 3.2 Chemicals PG · Pg · Pg 4.0 METHOD · 4.1 Variables · 4.2 Procedure PG · Pg · Pg 5.0 RESULTS · 5.1 Sample calculation · 5.2 Tables · 5.3 Graphs · 5.4 Photos PG · Pg · Pg · Pg
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coloring. Oil is less dense than water so it does not mix with the water. Food coloring is denser than water‚ so it drops through the oil and settles in the water mixing with it. The chemical reaction is a result of dropping the Alka-Seltzer into the water. 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. As the carbon dioxide gas bubbles float up towards the oil
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to survive. The Bayer™ company concluded that the dissolving time of Alka-Seltzer is faster in warmer water than in cold water.2 The increase in water temperature increases the collision rate which increases the rate the products are formed.1 If the experiment followed the Q10 model than the reaction rate would double for each 10°C temperature interval and therefore mimic the mammalian Q10 effect. If the Alka-Seltzer tablets are dissolved in water at increasing temperature intervals‚ then the reaction
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conserved* • Experiment Four: In a chemical change‚ the mass is conserved What you will need: Ziploc Bag filled with 20 ml of water Balance or Scale One Alka-Seltzer Tablet Procedure: 1. Find the weight of the Alka-Seltzer tablet and the weight of the Ziploc bag containing the 20ml of water. 2. Once both masses are recorded‚ add the tablet to the water and quickly close the Ziploc
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9. 3 M HCl 10. Iron (III) chloride (FeCl3) 11. Sodium chloride (NaCl) 12. Calcium chloride (CaCl2 ) 13. Potassium nitrate (KNO3) 14. 0.3% hydrogen peroxide (H2O2) solution 15. 8 test tubes 16. Test tube rack 17. 3 250mL beakers 18. Alka Seltzer tablet 19. 3 pieces of zinc metal Procedure: Particle size 1. Have two test tubes in the test tube rack. Put 1M hydrochloric acid into both of these test tubes. 2. Take a scoop full of powdered CaCO3 and put it in a test tube at the same time
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Author: Kyler L. Gray 11 October 2017 Abstract: Stomach acid builds up can cause irritation and immense pain to individuals. Luckily‚ antacid tablets are readily available and can be found almost anywhere. However‚ because of there ready availability‚ there are many brands with many different effects. This experiment aimed to determine which antacid tablet was the most effective. After experimentation‚ Alcalak was shown to have the highest neutralization results among the four brands we tested‚ with
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Which Antacid Works the Best? Heartburn is a condition characterized by a burning feeling in the chest and a sour or bitter taste in the mouth. Heartburn usually develops when the acidic contents of the stomach flow back‚ or regurgitate‚ into the esophagus‚ the muscular tube that carries food from the throat to the stomach. Approximately one in ten adults experience heartburn once a week. Heartburn is more common in pregnant women because of the pressure the expanding uterus exerts on the stomach
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