determine Acid‚ Base‚ and Neutral. On this lab we used 7 different solutions to determine if it’s either base‚ acid‚ and neutral. These are ammonia‚ vinegar; drain cleaner‚ soft drink‚ baking soda‚ detergent‚ and lemon juice are the solutions that are going to be tested in this lab. My hypothesis for these solutions is ammonia is acid‚ vinegar is neutral‚ drain cleaner is base‚ soft drink is base‚ baking soda is base‚ detergent is base‚ and lemon juice is an acid. For the red cabbage it would
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________________ Lab # ________ Partner _____________________ Purpose: To separate a mixture into its components. To learn the technique of chromatography. Materials: filter paper 2.0 ml of vinegar Felt marker pens ruler 400 ml beaker pencil 10 ml graduated cylinder paper clip Water - H2O Safety: Wear goggles and apron during the entire lab. Clean up all materials and lab area. Procedure: 1. Define chromatography:
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an enzymes that speeds up the production of cheese. 3. First milk is pasteurized by heating it to 72℃ for 15 seconds to kill any harmful bacteria. Then‚ the milk is cooled and either a special blend of bacteria or an acidic solution - such as vinegar or lemon juice - is added. The milk is left for one and half hours while the bacteria converts lactose (a substance called "milk sugar") into lactic acid. This causes the milk to sour and the pH to drop to approximately 4.5. A substance called "rennet"
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facilitated diffusion‚ filtration‚ and osmosis. In our Osmosis Lab I used a Grade a large egg from the grocery store. Its circumference is 5 ½ inches it is smooth with no cracks. I carefully place the egg in a clear plastic cup and fill the cup with vinegar. I immediately notice bubbles covering the egg and sifting upwards towards the top of the cup‚ looking through the cup I can see the egg is slightly suspended in the liquid. Within 25 hours there was white foam covering the egg. I cannot see the egg
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Determining pH Using a Red Cabbage Farnoosh Mazarei Food Microbiology April 22‚ 2011 Purpose: To test the pH level of many common household object by use of the juice from a red cabbage. Background: pH is the measure of the acidity or basicity of a solution. The pH scale ranges from 1 to 14 with 1 through 6 being acidic and 8 through 14 being basic; 7 is considered neutral. The use of the red cabbage‚ or red cabbage juice is because red cabbage can be used as an acid/base indicator
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Investigation 8.4- Titration Analysis of Vinegar Prediction: We predict that the amount concentration of acetic acid in a sample of vinegar is 0.83 mol/L. VCH3COOH (aq) = 10.00 mL VNaOH (aq) = ? CCH3COOH = 0.83 mol/L CNaOH (aq) = 0.145 mol/L Materials: Sodium hydroxide 100 mL Acetic acid 50 mL 250 mL beaker x 2 Distilled water x 1 bottle Erlenmeyer flask x 1 Burette x 1 Pipette x 1 Pipette bulb x 1 Volumetric pipette x 1 Phenolphalein Procedure: Step 1- Gather materials
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formed using clay. You’ll need a lot less ’volcano’ material if you make a general volcano shape out of paper and then just cover it with clay. Erupting Volcano Ingredients 1:- warm water 2:- baking soda 3:- liquid dishwashing detergent 4:- vinegar 5:- You can color the lava by adding food coloring or powdered drink mix Make the Chemical Volcano Erupt To cause an eruption‚ fill the bottle most of the way full with warm water. Warm water produces a better eruption than cold water because the
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on the market as silly putty‚gak and just plain old slime but‚ how is it made? and how do different substances affect it? well that’s what this experiment is all about. I will have a base slime and will tweak different attributes of it with borax‚vinegar‚baking soda and water. Borax is a widely known as a laundry detergent and can be used in many ways like a water softener‚disinfectant‚mouthwash and so many other numerous things i can’t even count. The reason for this in this experiment is it reacts
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descaler (vinegar)‚ as this could have a negative effect on the taste of the coffee. Note: Never use an acid- or vinegar-based descaling agent with 8% or more acetic acid to descale the appliance‚ as this may cause damage. http://www.diynot.com/forums/viewtopic.php?t=30088#axzz2Bph0xR9a Citric acid will do a better job than the acetic acid in vinegar. That’s because calcium citrate dissolves in water whereas calcium acetate forms an insoluble layer between the scale and the vinegar. You can
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Develop hypotheses on the ability of oil‚ vinegar‚ and laundry detergent to contaminate groundwater. a. Oil hypothesis = The oil will float to the top of the water and not contaminate the groundwater. b. Vinegar hypothesis = The vinegar will mix with the groundwater therefore contaminating it c. Laundry detergent hypothesis =The laundry detergent will mix with groundwater and change the
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