water. Emulsion is a mixture of two nonsoluble liquids that one liquid into other‚ in the form of drops. There are two kinds of emulsion: oil in water and water in oil while depends on whether the continuous phase is the water or oil. Mayonnaise is an example of oil in water emulsion consists egg yolk and oil that formed a stable emulsion by adding oil into egg yolk slowly and whisking it. The chemical makes emulsion stable is emulsifier‚ it helps two liquids come together and stay together: oil-loving
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Remember: For this recipe measuring all ingredients by weight‚ not by volume. 3. Turn the crock pot on high and melt all the oils. Better to use a smaller crock pot to cook the ingredients down and then move to a larger one once start adding the liquids. 4. Place 375g of the distilled water into a glass or stainless bowl. Measure out the KOH and slowly pour it into the water while stirring. It may notice it making groaning noises as it dissolves – this is normal. 5. Once mixed‚ add the water/KOH
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The purpose of this lab was to observe the rate of osmosis and diffusion‚ as well as the effect of molecular size of the particles on this rate. Part I of the lab was a demonstration of osmosis and diffusion‚ that dealt with raisins in different liquid environments‚ each with a different concentration of sugar. Part IV of the lab was using the same idea as the demonstration‚ by putting objects in different concentrations of a substance; in this case elodea leaves in salt water. In both cases‚ the
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Casting Lab 3: Gating Systems and Fluidity Introduction The purpose of the lab was to compare the difference in cross sectional areas‚ sprue size and location in gating systems as well as the totest the influence of the molten aluminum temperature had on the fluidity of the mold. We investigated which areas in the gating system filled‚ the time it took to pour the metal‚ the temperature effects on the fluidity. These tests are important when designing the mold‚ also when choosing which metal
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Science is Cool: Building a Lava Lamp Using your knowledge of chemistry‚ follow the instructions on building a lava lamp and answer the questions with your team. Use your knowledge from Middle School! Materials Clean‚ plastic water bottle Vegetable oil Food coloring Alka-Seltzer package A funnel Water Procedure 1. 1) Add 100 ml of tap water to the bottle. 2. 2) Add 100 ml of vegetable oil to the bottle. 3. 3) Add a maximum of 3 drops of food coloring to the bottle. 4. 4) Add 2 alka
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aqueous caustic solution containing UOP’s proprietary liquid catalyst. The caustic solution reacts with mercaptans(RSH) and extracts them. The reaction that takes place in the extractor is: 2RSH + 2 NaOH → 2NaSR + 2 H2O The second step is referred to as regeneration and it involves heating and oxidizing of the caustic solution leaving the extractor. The oxidations results in converting the extracted mercaptans to organic disulfides (RSSR) which are liquids that are water-insoluble and are then separated
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water. Add another 25 mL of distilled water to the graduated cylinder. Again‚ precisely measure this volume of water‚ and then measure the combined mass. Repeat Step 3 to obtain a third set. Use the 100 Ml Part 2.Measurment of the density of a liquid 4. Prepare dry and clean 25mL graduated cylinder. Balance should be zero first. 5. Note the volume of the meniscus after fill the cylinder by two third with water. Add a solution of least salt after pour out the water and add about 15mL of
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.0223kg | 3 Quarters‚ 1 Dime‚ 5 Pennies | 30g | 33.5g | .0335kg | Key | 14g | 8.8g | .0088kk | Key‚ 1 Quarter‚ 4 Pennies | 27g | 25.1g | .0251kg | Data Table 4: Liquid measurements. | | | Mass A | Mass B | Mass B - A | | | Liquid | Volume(mL) | GraduatedCylinder (g) | GraduatedCylinderwith liquid (g) | Liquid (g) | Densityg/mL | %Error | Water | 5ml | 16.4g | 21.5g | 5.1g | 1.02g/ml | 2% | Isopropyl alcohol | 5ml | 16.4g | 20.6g | 4g | .08g/ml | 1.78% | Data Table 5: Magnet
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water exists in liquid‚ solid‚ and gaseous states water referred to universal solvent ( bipolar molecule enables it to dissolve a wide variety of substances) ice floats ( temperatures drop molecules come together as a solid‚ elections repell (the molecules get less close thus making the ice have less density than water. If this did not occur ice could sink and destroy living organism. (sea animals) Thermal properties Water resist temperature change‚ due to high specific heat which in turn helps
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evaporation & condensation‚ sublimation and crystallization. Melting or the fusion of ice is endothermic‚ the equation for the fusion of ice is or melting is ∆Hfusion. Solidification goes from a liquid state to a solid state making this an exothermic reaction. Vaporization & condensation is from a liquid to a gas causing an endothermic reaction‚ the equation for liquefying or steam is ∆Hvaporization. Condensation is an exothermic reaction because it goes from a gas to a solid. A state the goes from
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