types of de-scalers‚ however the main types of de-scalers are: § Ethanoic acid (Vinegar or Acetic acid) § Citric acid § Sulfamic acid Advantages and Disadvantages of commonly used De-Scalers Ethanoic acid (vinegar or acetic acid) Ethanoic acid is an organic compound‚ a product from oil [4] a mixture of Ethanol (C2H5OH) and Oxygen (O2). It is used to make beer or wine taste sour. More commonly‚ it is used in vinegar (food flavouring) [1] Ethanol reacts with oxygen to form ethanoic acid and
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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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narrator believes He must punish Fortunato without receiving any punishment himself (236). However the pride is fatal only to Fortunato‚ who believes his wine tasting skills are superior to those around him. This is proven when he discredits another wine taster; “Luchesi cannot tell Amontillado from Sherry.” (237). His pride is what leads him down to the vaults‚ as well as what keeps him down there even though it may be a treat to his health. Pride is not the only thing that keeps Fortunato in the vaults
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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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