deaths per individual group and dividing them by the number of days the ants were studied for. The vinegar treated apple and normal apple death rates were determined by taking the average of each treatment variables death rates. For the ant tunneling rate‚ the total amount of tunneling done was divided by the number of days the study ran for. This number was then averaged for the normal apple and vinegar treated apple experimental groups. For both analyses the standard error and t-tests were performed
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pg. 9 7. Data ………………………………………… pg. 11 8. Results …………………………………….. pg. 12 9. Conclusion ………………………………. pg. 13 10. Acknowledgements …………… pg. 14 11. Bibliography ……………………… pg. 15 Background Info When the two substances (vinegar and baking soda) mix‚ the vinegar‚ an acid‚ is creating a chemical reaction with the baking soda‚ a base. When the two substances form‚ it creates carbonic acid. When the two substances become a carbonic acid‚ it is unstable and decomposes to create carbon dioxide
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starch solution‚ iodine solution‚ raw egg‚ vinegar‚ molasses‚ onion‚ and salt water. Procedure See lab procedure Observations Procedure A: At the beginning of the procedure‚ the iodine solution in the beaker was slightly yellow‚ and the starch solution in the dialysis tubing was milky. After about an hour‚ the inside of the dialysis tubing was very blue and the liquid in the beaker was clear and colourless. Procedure B: Egg Starting Weight Vinegar Molasses Water Weight 57.92 g 77.98 g 53
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Experiment 3: ANALYSIS OF UNKNOWN ACID SAMPLE USING TITRATION METHOD Date of Experiment: 4 September 2012 Introduction An acid-base titration is a procedure used in quantitative chemical analysis to determine the concentration of either an acid or a base. Titration is the slow addition of an acid (or a base) of known concentration from a burette (a narrow graduated cylinder) to a base (or an acid) of unknown concentration fin an Erlenmeyer
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bubbles around the potato slices. Day 2 Observations: Part III: Reaction between zinc and acetic acid Appearance of penny in vinegar after 30 minutes: Pretty dark coloured. Quite hard to see Lincoln’s head or the Memorial. Part IV: Reaction between baking soda and vinegar Description of what happened when the baking soda and vinegar were combined Immediately began foaming up and overflowing from the bowl. I also made a ziploc bag explode too. Questions and conclusions:
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the two substances of the unknown mixture from salt‚ sugar‚ dirt‚ and baking soda by looking at its properties. Hypothesis: Find the unknown substance by testing it out by heating it‚ pouring water‚ vinegar‚ and observing it . Procedure: 1) Materials- * 100ml of water * Vinegar * Bunsen Burner * 2 beakers * 1 spatula 2) First‚ do steps (3-6)to find out the properties of salt‚ sugar‚ dirt‚ and baking powder. 3) Observe and record the appearances of the four known
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step in the actual experiment is to open the two packages containing the polymer creatures and then placing each of them aside for later. Next‚ fill the the two containers with the two different liquids of choice‚ which in this case is water and vinegar. Finally‚ after filling the containers‚ place one of the two polymer creatures in each of the containers. Also‚ be sure to record the results throughout the day as the creatures soak in each liquid and to observe all of the effects that each liquid
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Petri Dish 3. Hydrogen Peroxide 4. Vinegar 5. Vinegar Substrate Procedure 1. Place a small piece of cooked avocado/avocado/soaked avocado in a Petri dish. 2. Place 10 drops of hydrogen peroxide/vinegar substrate on the avocado 3. Observe for enzyme activity by looking for bubbles 4. Rate the amount of oxygen bubbles produced on a scale of 1-5 5. Record your data in the chart Data Conclusion After placing 10 drops of hydrogen peroxide and vinegar substrate in the different forms
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completely. 4. Carefully inserted a burning splint into the test tube. 5. Recorded the results. Part 3: Vinegar and Sodium Bicarbonate (Baking Soda) 1. Poured 4mL of Vinegar into a test tube. 2. Lit the tip of a splint on fire using the Bunsen Burner. 3. Scooped a small amount of sodium bicarbonate. 4. Carefully added the sodium bicarbonate into the test tube. 5. Allowed the Vinegar and Baking Soda to react for 5 seconds. 6. Slightly tilted the test tube and inserted the burning splint
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also we can use ink in our everyday lives. Filipinos usually use charcoal in cooking so by that‚ we arrive at that kind of problem. Barbecue grill or metal fire pit Kitchen scale Charcoal briquettes Distilled water White vinegar Glass jar Glass bowl Wire brush or metal whisk 1. Burn a handful of charcoal briquettes in a barbecue grill or metal fire pit until they turn to ash. Wait until the ash has cooled completely. Use a kitchen scale to measure 1 oz. of
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