Objective: The main objective is to demonstrate the law of Conservation of Mass. Use Vinegar and baking soda to demonstrate the law of Conservation of Mass. Introduction: The law of Conservation of Mass states that mass is neither created nor destroyed during ordinary chemical reactions or physical changes‚ which means that no matter how dramatic of a change that a substance goes through‚ it will not lose mass. It may seem like it lost mass‚ and usually‚ if you weighed the result‚ it will have
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Results for Titration of 3 Trials of HCl and 1 Trial of Acetic Acid (Vinegar) Trial # | Va | Vb | 1 | 10.00 mL | Start:0.000 mLFinish:3.700 mLVb:3.700 mL | 2 | 10.00 mL | Start:0.000 mLFinish:3.750 mLVb:3.750 mL | 3 | 10.00 mL | Start:0.000 mLFinish:3.750 mLVb:3.750 mL | Vinegar | 5.00 mL | Start:0.000 mLFinish:12.100 mLVb:12.100 mL | Figure 1 Calculations Involved With Experiment Mb Value using 0.1 M HCL and measured
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Menbere Wendimu Che101 Laboratory Report Acid Base Laboratory Objective: Introduction: Experimental: 2.04 g of KHP‚ 100ml volumetric flask‚ distilled H2O‚ approximately 0.1 M of NaOH‚ Vinegar‚ Phenolphthalein‚ 250ml Erlenmeyer flask‚ weighing balance‚ Graduating Cylinder‚ burette and pH meter were used in our experiment. In our first part of our experiment to prepare a primary standard‚ 0.1 M solution of KHP‚ we carefully weighed out 2.04g of KHP in a weigh paper using the weighing balance
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chemical properties of four liquids: acetone‚ vinegar‚ hydrogen peroxide‚ and oil. By using our knowledge about the four liquids we needed to identify the components of an unknown mixture. Theoretical Background The liquids commonly found around the house such as acetone‚ vinegar‚ hydrogen peroxide‚ and oil was tested to identify the physical and chemical properties of these liquids. Acetone usually used as nail polish remover dissolves plastic. Vinegar used in cooking and as a condiment begins to
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ounces) or other similar containers Hot water (e.g.‚ from a faucet‚ heated in a microwave oven‚ etc.) Thermometer Vinegar Baking soda Safety goggles Tongs or fork Eyedropper or drinking straw Craft stick or toothpick Extra sticks or drinking straws for stirring Hypothesis In this lab‚ you will compare the pH ranges of vinegar and a solution of water and baking soda. Do you think vinegar is an acid or a base? What about the baking
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solutions was calculated using the obtained values from the procedures. In the third part‚ the percent of acetic acid in vinegar was determined. The buret was rinsed with 0.2M NaOH and was later on filled with the same solution up to its mark of 0.0 ml. 5ml of commercial vinegar‚ 45ml distilled water and two drops of phenolphthalein was placed in the Erlenmeyer flask. The vinegar was titrated with 0.2 NaOH until its color turned to light pink and then the volume of
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ss after lighting the candle. By combining vinegar and baking soda in a sealed water bottle we were able to further support the Law of Conservation of Mass. Objective: The purpose of this experiment was to create a chemical reaction inside of a closed system in order to observe the Law of Conservation of Mass. A secondary objective of this lab was to use the analytical effectively and precisely. Hypothesis: If we mix baking soda and vinegar in a closed system then the mass of the reactants will equal
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is the lowest concentration of a solution that still has perceptible taste for salt‚ sugar and vinegar. Risk Assessment Risk | Mitigation | 1. Injury from broken glass cylinder. | Wear safety glove‚ handle cylinder carefully. | Water spills on the floor -> slippery floor. | Handle container carefully‚ wear safety footwear. | EQuipment * salt * table sugar (sucrose) * vinegar * water ( distilled) * spoon * gram scale * 100 mL graduated cylinder * 10
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corn syrup is a hypertonic solution‚ then the egg’s size will shrink. If the water is a hypotonic solution‚ then the egg will swell. Materials: Styrofoam cups (2 per group) Styrofoam cups to weigh down egg (2) Balance Paper towels Vinegar (enough to cover egg) Distilled water Corn syrup Fresh eggs (2 per group) Procedure: Day 1: 1. Take 1 clear cup and label it “Egg 1 : water”. Label the other clear cup “Egg 2 : syrup” (you may receive a cup that is already labeled).
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variable: Weight after being in vinegar for a couple days Control: None Constants: Amount of vinegar Materials: Beakers Vinegar Red Sand Stone Pea Stone Marble Plastic Rubber Bands Cups Scale Paper Towels Sketch up Lab: Procedure: 1. Get the beaker 2. Fill the beaker with 20 ml of vinegar 3. Get the 3 types of stone and weigh them 4. Put them into 3 different cups 5. Pour vinegar over the stones 6. After a few days go by drain the vinegar and dry the stones. 7.
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