The purpose of sludge was the following: To use lab skills learned throughout the year to separate and identify each pure substance in the original mixture. The sludge that was given to the group had the name of Ramos. The mixture of Ramos was a dark, orange, murky liquid that had a few objects floating around in it, such as (or hypothesized as) orange blocks, and tiny ‘metal’ rods. The mixture also had a substance that looked like, and appeared to be, sand. These were all able to be separated and identified using the two labs stated below, without getting into specifics. To separate the Ramos mixture the group first first conducted the dissolve, filter, evaporate method, and prepared the lab for as well. Though for this lab the substance …show more content…
With this lab the group was able to separate the liquid that had been filtered out after doing the DFE lab. Due to these two labs the group was able to identify the substances the make up the mixture known a Ramos. Sodium was one of the substances in the Ramos mixture based on this data; the orange powder found after evaporating the filtrate in the dissolve, filter and evaporate lab. The orange powdery substance burned bright orange, which is a noticeable characteristic of sodium. The substance was also insoluble in both water and alcohol, and since Ramos has both alcohol and water in it, and could be slightly seen in the sand after it got filtered. And this leads to the conclusion that this substance found in the mixture is indeed sodium. Alcohol was also another substance found in the mixture. Its noticeable as it was most likely was fraction 1 in the fractional distillation lab. Sharing a boiling point with alcohol, alcohol being 82 degrees celsius, and fraction 1 being 83 degrees celsius (which i extremely close). The substance, fraction 1, was also as flammable as alcohol is , when testing its flammibility. Last but not least, sugar was insoluble in fraction 1 just like it is with alcohol. Based on this, fraction 1 is most likely isopropyl …show more content…
Similar to fraction 1, fraction 4 shared many of the same characteristics with water. Such as its (waters) boiling point being 100 degrees celsius, which was exactly the data the group collected with fraction 4. But you can also prove that fraction 4 was indeed water because of its solubility being .859g which is close to waters solubility, (1.00g). Another thing the shows that water was fraction 4 was the fact that sugar was also soluble in fraction 4 just like it is with water. With these three characteristics lined up together, it's easy to tell that water was also a substance in
This was probably heat generated from the reactions of and the mixture to generate the precipitate. The precipitate was filtered out once, but the filtrate was not colorless, but still milky white. The white milky filtrate indicates the presence of . The filtrate was not reused, so some of precipitate may have been lost.
Procedure and Observations To begin the lab, first all the correct equipment and materials had to be collected
Unknown Lab Report Unknown # 25 By: Jenna Riordan March 19, 2018 Bio 2843 1. Introduction Microbiology is the study of microorganisms found in all different environments throughout Earth, from the hot thermal vents at the bottom of the ocean to the ice at the top of a mountain.
This was mostly likely due the fact that the distillation method occurred last in the procedure, while the filtration occurred first. The water and sodium chloride had time to sit with one another while the rest of the experiment was being conducted, meaning that some of the sodium chloride had time to completely dissolved within the water. By the time it was placed into the evaporating dish and over the bunsen burner, it was too dissolved to be recovered. If the water was added to the mixture/filtration occurred right before distillation occurred, the sodium chloride would have been able to be removed from the water due to the fact that less of it would have been dissolved in that shorter period of time. Additionally, the sodium chloride stuck to the sides of the evaporating dish and made it more difficult to scrape it off using a scoopula.
5.05 Candy Chromatography Lab Purpose: Chromatography is used to separate mixtures of substances into their components and also to identify them. The purpose of this lab is to separate pigment from Skittles to observe colors that are not shown. Background information and research: Paper chromatography is a technique that is used to determine and separate parts of a mixture in order for identification. Paper chromatography is used to identify chemicals such as inks and dyes Materials: 4 pieces of candy with a colored coating (Skittles: Red, Green, Orange, Purple)
Glacial acetic acid and acetic anhydride were added to the mixture while refluxing, which converted the lime colored solution into a clear mixture. The flask was cooled in an ice bath and the solution
3. Upon adding 20 drops of NaOH, a white precipitate was formed signifying acidic impurity. In the second NaOH mixture, about 20 drops were administered and no precipitate formed indicating that the ample is more pure than before. Data: Weight of flask = 75.10 grams Weight of the flask with solids =
In this lab, we tested 8 known ingredients to find what ingredients was in our unknown A and unknown B medications. We first tested the water solubility of our knowns and unknowns. We found that of the knowns, cornstarch and acetaminophen were the only ones not water soluble. The unknowns were also not water soluble. Th next test was the pH test.
Weighed 1 gram of NaC2H3O2 and mixed it with ionized water. Boiled 12 mL of 1.0M Acetic Acid added into a beaker containing the sodium carbonate on a hot plate until all the liquid is evaporated
The Study of Diffusion and Osmosis Using Deshelled Eggs Maquita A. Dieufene Jessica Thelwell(Partner) 10/09/2014 1611 Evening Lab Introduction It is quite simple to overlook the roles diffusion and osmosis play in daily life. If one has ever spent too much time in the pool and watched as their fingers begin to turn prune-like, that is an example of osmosis. Osmosis is simply defined as the movement of a concentrated solvent through a semi permeable membrane to a more concentrated solvent.(Biology Corner) Relating to the earlier example of osmosis, your body acts as the more concentrated solvent for the water to penetrate. Diffusion is the exact opposite of osmosis.
The objective of the sludge lab was to determine how many different pure substances were in the sludge by using the methods and techniques we have learned throughout the year. We had to pick separation methods so we could separate our sludge and then test characteristic properties on our separated liquids and solids. This experiment made us use our knowledge on characteristic properties to pick the ones we should test to help us identify our pure substances. Characteristic properties are properties that help identify a solid or liquid. Each solid or liquid has a certain density, boiling point, solubility, flammability, so if you know what each one is then you can use that information to help you identify your solid or liquid.
Properties of Ionic and Covalent Substances Lab Report Introduction The purpose of this lab was to determine which of the following substances: wax, sugar, and salt, are an ionic compound and which are a covalent compound. In order to accurately digest the experiments results, research of definitions of each relating led to the following information: ionic compounds are positive and negatively charged ions that experience attraction to each other and pull together in a cluster of ionic bonds; they are the strongest compound, are separated in high temperatures, and can be separated by polar water molecules. A covalent compound forms when two or more nonmetal atoms share valence electrons; covalent compounds are also
Purpose/Introduction The process of recrystallization is an important method of purifying a solid organic substance using a hot solution as a solvent. This method will allow the separation of impurities. We will analyze Benzoic Acid as it is dissolved and recrystallized in water and in a solvent of Methanol and water. Reaction/Summary
The components of the sample called solutes or analytes separate from one another based on their relative vapour. This chromatographic process is called elution.
Abstract — This experiment was conducted to familiarize the students with the procedures regarding distillation—to be more precise, the separation of ethanol from an alcoholic beverage—using a distillation set-up consisting of boiling chips, a Bunsen burner, a condenser, a thermometer and several other materials. In the end, it was discovered that one may actually separate a homogeneous mixture, given that the components of said mixture differ in volatility and that they utilize a complete distillation set-up and follow laboratory safety rules and regulations. Keywords — Matter, homogeneous and hetereogeneous mixtures, distillation, volatility, boiling point I. INTRODUCTION There are typically two categories of matter, these are pure substances