An emulsion is a mixture of two immiscible liquids. Immiscible liquids, such as water and oil, are unable to mix without a third party, which in this experiment is the xanthan gum and whey powder, because of the polarity of the liquids. Because water is polar and oil is not, it is impossible for both of them to be mixed.
Purpose and Hypothesis
If we combine 0.25 grams of xanthan gum and a mixture of water and oil, then it will create a stable emulsion when shaken. The purpose of these labs are to find a stable emulsion that if left alone for fifteen minutes will remain unseparated.
Background Information Emulsions are one of the secrets of life, and if they did not exist on this planet, life would not have been able to form. Examples of
Firstly, an amount of 40.90 g of NaCl was weighed using electronic balance (Adventurer™, Ohaus) and later was placed in a 500 ml beaker. Then, 6.05 g of Tris base, followed by 10.00 g of CTAB and 3.70 g of EDTA were added into the beaker. After that, 400 ml of sterilized distilled water, sdH2O was poured into the beaker to dissolve the substances. Then, the solution was stirred using the magnetic stirrer until the solution become crystal clear for about 3 hours on a hotplate stirrer (Lab Tech® LMS-1003). After the solution become clear, it was cool down to room temperature. Later, the solution was poured into 500 ml sterilized bottle. The bottle then was fully wrapped with aluminium foil to avoid from light. Next, 1 mL of 2-mercaptoethanol-β-mercapto was added into fully covered bottle. Lastly, the volume of the solution in the bottle was added with sdH2O until it reaches 500 ml. The bottle was labelled accordingly and was stored on chemical working bench.
The aim of bathing is to both grease and cleanse the skin. An excellent emollient bath may be prepared by dissolving two spoonful (dessert spoonful for child, table spoonful for adult) of emulsifying ointment in very hot water, whisking it up and adding it to the bath water.
In this experiment, NaOH and diethyl ether are used as solvents. NaOH and diethyl ether must be immiscible with one another. They each must selectively attract the desired component from the solution being extracted. They should be easily separable from the solute being used. NaOH is a polar solvent and dissolves benzoic acid that has a high polarity, while diethyl ether is a nonpolar solvent and dissolves naphthalene that has a low polarity. The density determines the solvent position in the separatory funnel. Since diethyl ether is lighter (less dense) than water it stays on the top. Since both naphthalene and benzoic acid are soluble in diethyl ether they will not readily separate, that is why NaOH is added. When the polar solvent, NaOH, is added, benzoic acid reacts to form sodium benzoate and water because benzoic acid has a high polarity and is soluble in NaOH.
The purpose of this lab was to show us what happens to the egg (that was in vinegar), and corn syrup when you combine it. The egg that was in the corn syrup overnight was shriveled.
soluble. In other words, any way ap person gets it in his or her body, it will
The material and equipment used was a sample of candy such as M&M’s, skittles, and Reese’s pieces. Set food colors for comparison. Filter paper or coffee filters. 0.1% salt solution {1/8 tsp salt in 3 cups of water}. Clear plastic 9 oz cups. Blow dryer. Also you will need some toothpicks and small {1 oz} plastic cups. This are the materials and equipment we used for this experiment .the objective of the experiment is to use the technique of paper chromatography to show that it can be used to separate from each other in a mixture. To understand the principles of paper chromatography.
Journal: when i was doing my experiment the first thing i had to do was get my materials that are 1) clear drinking glass 2)¼ cup of vegetable oil
The Biological Importance of Water as a Solvent and as a Medium for Living Organisms
During the incubation, in an Erlenmeyer flask, 1X Tris Acetate EDTA (1 mL) and powder agarose (0.4 g) were dissolved in dH2O (49 mL). Then the solution was microwave for 2 minutes and allowed to cool to room temperature. Then SafeRed concentrate (2.5 µL) was added to the solution and it was poured into the gel box and allowed to solidify.
what help create all the living things we see everyday. Lipids are found in all membranes, mainly
When a miscible salt is completely dissolved in liquid solvent to dissociate positive and negative charged ions, then this mixture is called liquid electrolyte.
The solvents used in this experiment were sodium hydroxide as the aqueous layer and the ethyl acetate and unknown benzocaine as the organic phase. These phases are separated with an emulsion line which is a distinct line that shows where the aqueous and organic layers meet but do not mix. This method of separation relies on portioning the preferential dissolution of a compound into one solvent over another (2).
This is an example of a soap molecule. The hydrocarbon end is non polar and hydrophilic (water hating) and the carboxylate end is polar and hydrophilic (water loving). This the property which allows it to clean, it acts as an emulsifying agent. The soap disperses in water to form miscelles where a negatively charged surface is formed and hydrocarbon chains are in the centre. These miscelles surround droplets of dirt or grease suspending them in the water so they can be washed away.
I picked the science experiment elephant toothpaste this year, because it seems interesting and fun. It is also a way to test if the removal of oxygen in these experiments will actually work. I have four different experiments. Two out of the four experiments I am testing, is to see if there is a different reaction time and size between yeast and potassium permanganate and the percentage of the hydrogen peroxide. My third and fourth are tests of elephant toothpaste is to see if adding cornstarch has a color reaction to the potassium iodide to make it look like it is “glowing”, or if the yeast and fluorescent dye will make it look “glowing”. I think the elephant toothpaste that uses 50% hydrogen peroxide and potassium permanganate will have the
It is a transparent, colorless, viscous, oily liquid. It is tasteless and odorless when cold and have a faint odor of petroleum when heated. It is practically insoluble in 95% ethyl alcohol, glycerin and water. It is soluble in benzene, acetone, carbon disulfide, chloroform, ether and petroleum ether. It is miscible with volatile oils and fixed oils except castor oil (74).