Solubility

little value meaning it is considered as a weak acid. Likewise, another measure of equilibrium, the solubility product constant (Ksp) was determined in the experiment. The Ksp of Ca(OH)2 was computed to measure how soluble the substance is in the solution. The computed Ksp of Ca(OH)2 is 2.6791 x 10-5. The higher the Ksp means higher concentrations of ions in the solution, thus having greater solubility in a given…

The purpose of this lab was to determine how different solvents affect the solubility of sugar. In this experiment 2 grams of sugar was mixed into 50 ml of rubbing alcohol, water and vegetable oil. It was hypothesized that the rubbing alcohol would dissolve the sugar the best followed by the water, and the vegetable oil would fail to dissolve the sugar. It was found out that both the rubbing alcohol and the vegetable oil were not able to dissolve the sugar. The water however, was able to…

The purpose this experiment was to identify our unknown compound, either and aldehyde or ketone, based on a series of tests. This experiment was completed over two weeks in order to dry the crystals and determine the melting point. The unknown that we were assigned was 501 G. A series of tests were performed on this unknown compound in order to figure out the identity. A summary of the results of the tests is shown below. Distillation: Boiling Point: 179.0°C-194.0°C Qualitative Tests: 1.…

of this experiment was to identify an unknown sample by preforming classification tests such as: Bisulfite test, Schiff’s test, and Idoform test. Also, to confirm the identity of the unknown by melting point, IR spectroscopy, and 1H NMR. For the solubility test, 1 mL of deionized water was placed in a test tube. A few drops of the of the unknown was added to the test tube and mixed with a pipette. After a few minutes, the unknown was determined to be insoluble. Next, the Schiff’s test was…

the way it might behave. This was done by performing many anion, cation, solubility, and pH tests to help us to determine the identity of our compound. The list of salts in the lab manual made it possible to narrow down the possibilities of our unknown compound. After identifying the compound, the goal was to synthesize the unknown compound. To determine the initial properties of the unknown compound, a qualitative solubility test was performed by mixing five milliliters of water with one gram…

“Discussion of Results The goals of this experiment were approached in many ways. To figure out the solubility, which is the ability of a solid dissolving in a liquid, of oils, fats, and detergents, the group tried to dissolve all the beginning substances and finished products in a multitude of solvents. In the testing of the four starting substances for the soaps, the group found that all the substances were insoluble in water and hydrochloric acid. However, vegetable oil was soluble in…

Extraction was the main method of removing compounds from the sample. The component X was removed from the sample by first adding the organic solvent dichloromethane to the test tube. After aggravation, the component X dissolved into the solvent. Since components Y and Z were insoluble in the organic solvent they remained as solids. The test tube was then placed into a centrifuge and ran for thirty seconds. By doing so, the unsettled solid were forced to accumulate at the bottom of the test tube…

Background: Solid-liquid extractions are common in everyday life and are important in a chemistry laboratory because they involve the separation of an individual compound from mixtures. Using solid-liquid extraction, which separates compounds based on solubility. Trimyristin was isolated from nutmeg using diethyl ether because trimyristin is a nonpolar compound that readily dissolves in diethyl ether, which has a low polarity. To concentrate the solution containing trimyristin distillation was…

According to Ahmad S.A. and Lone S.R. “Hybrid Process (Pervaporation-Distillation)”, Distillation is a separation technique, in which a feed mixture of different components is separated into two or more reaction products by collecting the overhead distillate, formed as vapor or a mix of vapor and liquid, and keeping the remaining liquid solution in the reaction container. To achieve this: firstly, the feed has to contain a liquid or a mix of vapor-liquid mixture at the start of the reaction.…

Summary The goal of the experiment was to determine weight % of sulfate inside an unknown sample compose of Na2SO4. The sample was dried, weighed and dissolved in water and hydrochloric acid. Barium chloride was then added in excess to drive the precipitation process to completion. Heat was use to digest the precipitate before it was filtered through an ashless filter paper and ignited to constant weight. From mass of the sample and mass of the precipitate, the percentage of sulfate in the…