In the experiment‚ 0.3 g of mixture was dissolved in 3 mL of t-butyl methyl ether in a centrifuge tube. Then‚ 2 mL of 0.5 M NaHCO3 was added‚ shaken for one minute‚ and allowed to sit for two minutes so the layers could separate. The lower water layer was removed with a Pasteur pipette and placed in a test tube labeled “Acid.” Next‚ 0.5 mL of distilled water was added to wash the ether layer in the centrifuge tube and then discarded. 2 mL of 0.5 M NaOH was added to the remaining layer‚ shaken for
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The purpose of this lab was to model the significant differences in density that oceans experience when glaciers and polar ice caps melt. It demonstrated that the variation in density greatly affects salt water. I discovered that the increase in freshwater causes a decrease in density. I made three claims. First‚ the higher the salinity of the water is‚ the denser it will be. This was shown in my data by the fact that‚ with 0mL of fresh water‚ the density was 1.108 g/mL For every milliliter of fresh
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Let’s Make Salt Purpose: Could NaCl be made using NaHCO3‚ hydrochloric acid‚ and a boiling chip? Hypothesis: If I combined NaHCO3‚ hydrochloric acid‚ and a boiling chip I think it will form NaCl because when you balance the equation it makes a new chemical reaction. Materials needed: test tube cleaner‚ test tube‚ test tube tongs‚ hot plate‚ a scale‚ graduated cylinder‚ water‚ goggles‚ fire retardant glove‚ beaker‚ test tube holder‚ a scoopula‚ hydrochloric acid‚ sodium bicarbonate‚ soap‚ pipette
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SEPARATION OF MIXTURE OBJECTIVE: To separate the components of a mixture based upon physical characteristics of each component within the mixture. Secondly‚ to determine the mass of each component by using the knowledge of separation techniques. SAFETY REQUIREMENTS: Do Not Pipette By Mouth Read the Chemical Safety Information Dress Appropriately Identify the Safety Equipment Don’t Taste or Sniff Chemicals Don’t Casually Dispose of Chemicals Down the Drain MATERIALS:
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Separation of Proteins and Mass Analysis Using SDS PAGE Biology 00-01L Abstract This experiment consisted of separating proteins into polypeptides using a method called SDS PAGE which is a type of electrophoresis. The polypeptides had different masses‚ so each polypeptide traveled a different distance and this was an essential part of the lab which demonstrated that there exists a relationship between the distance traveled by the protein and the mass of the protein. This relationship was graphed
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Lab 2 “Separation of a Mixture of Solids Lab Report Assistant (10 points) Data Table 1: Experimental Data Grams Percent of mixture Iron (Fe) fillings 0.9 g 20 % Sand 1.2 g 25 % Table salt 1.6 g 25 % Benzoic acid .8 g 16 % Total 4.5 g 86 & Questions A. How did your proposed Procedures or flow charts at the beginning of this experiment compare to the actual Procedures of this lab exercise? (2 points) I proposed a magnet would be the used to remove the iron from
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Title: Lab #3 Separation of a Mixture of Solids Purpose: To understand the different separation methods and techniques that depend on the chemical properties of a specific substance. Also to become more comfortable with performing those actions of separation so I have them in the future. For this experiment‚ I will separate a mixture of four distinct substances: sodium chloride‚ benzoic acid‚ silicon dioxide‚ and iron fillings into pure beings. Procedure: Materials: distilled water coffee
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Title: Separation of a Mixture of Solids Purpose: Learn and demonstrate how to separate different ingredients from a mixture of solids using different methods based on the properties of each ingredient. Procedure: I weighed mixture and tools‚ and proceeded to begin separating each ingredient. I used a magnet to separate the iron from the mixture. Then I heated the mixture in water to get the non-soluble sand out. Then I filtered out the benzoic acid after cooling it into a crystal form
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Science Fair Research Paper Chemical mixture separation of grape soda. -How can I separate color dyes in grape soda using space sand? By: Jiaqi Li Room: 8B/327 There are many different types of soda with different color. Is soda really made of natural color from fruit? Is that safe to drink? Will that kill you? So there is science behind this. The colors of the soda is made of pigments. The fruit color will make the color of the soda brighter. Column Chromatography is a new technical
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Colegio de San Juan de Letran College of Liberal Arts and Sciences Experiment #3 SEPARATION AND PURIFICATION OF ORGANIC COMPOUNDS: CRYSTALLIZATION Gomez‚ Paola Anne M. DOP: 2 July 2013 Student no. : 4120403 DOS: 9 July 2013 Group: Carcinogenic Remarks: _____________________________________________________________________ Engr. C. D. Sanchez Instructor THEORETICAL DISCUSSION Crystallization is a technique which chemists use to purify solid compounds. It is
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