sample
Haven't found the Essay You Want?
For Only $12.90/page

Solubility Essay Topics & Paper Examples

Gravimetric Analysis report

SynopsisThe objective is to determine the amount of Sulphate in anhydrous Barium Sulphate precipitate by gravimetric method. Gravimetric method is by the quantitative determination of the mass of anhydrous Barium Sulphate precipitate. Barium sulphate precipitate is form when Barium Chloride is added excessively to a hot given Sulphate solution slightly acidified with concentrated Hydrochloride acid. The white precipitate of hydrate Barium Sulphate formed is than digest, filtered out, washed and dried than cool down in a desiccator. Anhydrous Barium Sulphate is formed and weight using analytical balance. We will find that the mass of Barium Sulphate precipitate form is 0.1990g and with the knowledge of its chemical composition, we can calculate the amount of Sulphate. From these, we found that…

Comparative Investigation of Organic Compounds

Abstract Organic compunds were examined to a comparative investigation to differentiate the properties of each sample. The physical state at room temperature, odor and color of the sample were noted by simple observation. In terms of solubility in H2O, 5% NaOH solution and 5% HCl solution, the samples were classified as to miscible, slightly immiscible or immiscible for liquid; and very soluble, soluble, partially soluble or insolubse for solid. The samples also underwent a test using litmus paper to classify its acidity, basicity or neutrality. The next procedure was the ignition test, which classified the sample as to whether the sample was flammable, or non-flammable and the color of the flame were noted. After going through all the tests, it…

Identifying a Constituent of “Panacetin”

The Consulting Chemists Institute has been asked to analyze the drug preparation of Aspirin to find out what percentages of aspirin, sucrose, and drug preparation. The purpose of this experiment was to determine the unknown component of panacetin. Panacetin contains aspirin, sucrose, and an unknown component. Dichloromate reacts with Panacetin to produce the sucrose as an insoluble solid. Aspirin is removed from the solution by reacting with sodium bicarbonate. The aqueous layer reacts with hydrochloric acid, the unknown component can then be isolated by evaporating the solvent from the dichloromethane solution. Observations and Data: Aspirin reacted with Sodium Bicarbonate to form salt, sodium acetylsalicylate. The reaction caused fizzing and gas. When hydrochloric acid was added to sodium acetylsalicylate the solution…

Gravimetric Analysis & Determination of an Unknown Metal Carbonate

A large variety of analytical techniques and procedures, ranging from instrumental methods such as spectroscopy and chromatography to more classical processes, such as qualitative and gravimetric analyses, have been used to help chemists identify unknown compounds. Gravimetric analysis is a type of quantitative analysis, concerned with determining how much of one or more constituents is present in a particular sample of material. Gravimetric analysis derives its name from the fact that the constituent being determined can be isolated in some weighable form. This technique usually involves a double replacement reaction in which two soluble compounds are mixed and an insoluble precipitate forms. The general procedure is as follows: Find the mass of the sample to be analyzed (the analyte) Dissolve…

A mixture containing

1.)How does the use of fluted filter paper hasten filtration? Why is it advisable to place a small piece of wire between the funnel and the mouth of the flask during hot filtration? The way the fluted filter paper is folded hastens filtration because it increases the surface area of the filter paper, giving the solution more area to go through. A piece of wire is placed to avoid build-up of pressure, and easily pour the solution without spilling. 2.)Enumerate 2 techniques that can help prevent premature recrystallization. Explain each item. What can be the consequence if premature recrystallization was not avoided to occur? Premature recrystallization happens when the solution cools down while it is being poured. To avoid this,…

An Introduction to Qualitative Analysis

Procedure Part I – Qualitative Analysis of Group 2 Elements Mix 0.02M K2CrO4 with each Mg(NO3)2, Ca(NO3)2, Sr(NO3)2 and Ba(NO3)2 together. Secondly, mix 0.1M (NH4)2C2O4 instead of 0.02M K2CrO4 together with the same reactants used before. Thirdly, mix 0.1M Na2SO4 with those reactants. Then, mix 0.1M NaOH with the same reactants used before again. Some precipitates should forms ,record the observations in Table 1. At last, identify those two unknown solution. Part II- Qualitative Analysis of Selected Anions First mix 1M HNO3 with each Na2CO3, Na2SO4, NaCl and NaI together. Repeat these steps by placing 0.1M Ba(NO3)2 instead of 1M HNO3. Then mix 1M HNO3 for the reactants that formed precipitates. Repeat the first step by placing 0.1M AgNO3 instead…

Analysis of Solutions Containing

This experiment continues the qualitative analysis begun in Experiment 19. Here we will be analyzing solutions to determine the presence of anions. The same techniques that were used for the cation analysis must be used for the anions. If you have not carried out Experiment 19, read the introductory section before starting this experiment. The major difference between cation and anion analysis is that in anion analysis, a series of separations of the ions from one another is usually not the most efficient way to determine their presence. Instead, only some separations will be made, and the initial test solution will be used to test many of the ions. Refer to the flow chart at the end of the experimental…