Experiment 1: Neutralization of Acids and Bases In this experiment‚ you will learn how to properly neutralize and dispose of acidic and basic solutions. Materials 5 mL 4.5% Acetic Acid (vinegar)‚ C2H4O2 (1) 10 mL Graduated Cylinder 8 Litmus Test Strips (Neutral) Permanent Marker 2 Pipettes 1 g Sodium Bicarbonate (baking soda)‚ NaHCO3 4 Weigh Boats *Water *You Must Provide Procedure 1. Use the permanent marker to label three of the weigh boats as A - C. 2. Measure and pour approximately
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Observations of Chemical Changes Purpose/Hypothesis: To observe how acids react with bases and examine reactions of common household cleaners and the macroscopic changes these chemicals undergo. I expect for each solution to react differently when mixed with acids and bases. Procedure: I have a well-plate-96‚ a piece of white and black paper‚ and the chemicals from the Observation of Chemical Changes Experiment Bag. I used a different well for each combination of solutions. I placed two
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electrically. It turns red litmus to blue. It turns colorless phenolphthalein to pink Properties of Acid * Acids and acidic compounds taste sour and give off an acrid odor. Take‚ for instance‚ vinegar. You can smell the stinging sour odor as soon as you open a bottle of vinegar and we all know how vinegar tastes! * All acids and acidic compounds react with metals and such reaction always results in the production of hydrogen. * Acids are good conductors of electricity and are so corrosive
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these results mean? Soluguard disinfectant – Turned yellow- Acidic Vinegar - Turned yellow - Acidic Melabright fabric brightner – turned yellow - Acidic C. You found a sample of a solution that has a faint odor resembling vinegar. You are verifying that it is indeed vinegar and you add a few drops of phenolphthalein. The sample turns pink. What assumption can you make about this sample? That the solution is a base and it is not vinegar D. While performing a starch test on several different cookie
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add 18 mL of titrant to the flask containing the vinegar and indicator (phenolphthalein)‚ then the endpoint of titration will be reached‚ causing the solution to turn pink. 2. If we add 14 mL of titrant to the flask containing HCI and the indicator (phenolphthalein)‚ then the endpoint of titration will be reached‚ causing the solution to turn colorless. II. Data Table 1: Acid or Base in household cleaner Name of cleaner or vinegar Vinegar Acid or Base Contained NaOH Molecular Mass 60
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INT Task 3 In this paper I will be addressing how to tell an acid from a base using a simple experiment that can be done in the household. Telling an acid from a base is very important in the world from people that may have a pool in their backyard to those who are chemists and need that information to balance chemical equations. With simple experiments‚ one can tell if the solution they have is a base or an acid. The testable question in this paper will be “can simple tests show that a liquefied
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foamy 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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Mayonnaise is a thick‚ creamy dressing that’s an emulsion of vegetable oil‚ egg yolks‚ lemon juice or vinegar and seasonings. It is widely used as a spread‚ a dressing and as a sauce. It’s also used as the base for such mixtures as Tartar Sauce‚ Thousand Island Dressing‚ Aïoli‚ and Remoulade. Vinagrette‚ is a sauce made of a simple blend of oil‚ vinegar‚ salt and pepper (usually 3 parts oil to 1 part vinegar). More elaborate variations can include any combination of spices‚ herbs‚ shallots‚ onions‚ mustard
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water(s) but that may have been because of the green detergent. POST LAB QUESTIONS 1. Develop hypotheses on the ability of oil‚ vinegar‚ and laundry detergent to contaminate groundwater. **Everything has the ability to contaminate our groundwater‚ but it depends on the product to determine how bad it may contaminate the water. The least affected water to me was the vinegar solution. It was the lightest colored water which makes me feel like it is the less potent. The detergent had the
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QUESTIONS 1) The control in this experiment was the bag that contained the radish seeds with tap water. This was an important part to have in the experimental design because I was able to compare this to the other bags that contained coffee‚ ammonia‚ and vinegar. With the results that I collected‚ I was able to gather more observation and data. 2) The independent variable in this experiment was the pH level of the solutions‚ whereas the dependent variable was number of seeds that each solution was able
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