Physical chemistry

balloon rides, a nationwide push for the metric system, bigotry charges, and student protests. This was the Mendeleev that Russia knew and (mostly) loved. The periodic table was just a particularly prescient project tucked away in an introductory chemistry textbook, widely known to the scientific community…

PHYSICAL PROPERTIES: It has two isomeric forms 1, 2, 3-triazole and 1,2,4-triazol with common molecular formula C2H3N3,and both have 69.06 molecular weight. [2]] 1, 2, 4-triazole derivatives simply exist in solid forms. 3, 4, 5-substituted 1, 2, 4-triazole derivatives melts on thermolysis when heated at high temperature3160C for half an hour. 1, 2, 4-Triazole derivatives are easily soluble in polar solvents and slightly soluble in non-polar solvents. However the solubility in non-polar solvents…

The goal of this experiment was to use chemistry to analyze an unknown compound and through testing its physical and chemical properties determine what unknown compound that was found in a landfill. This would benefit the Environmental Protection Agency because once they know what the substance was they could determine the best way to remove it from the landfill and if there were any potential safety hazards to beware of while handling the substance. This would prevent any accidents that may…

stannic oxide in the older notation, is the inorganic compound with the formula SnO2. The mineral form of SnO2 is called cassiterite, and this is the main ore of tin. With many other names, this oxide of tin is the most important raw material in tin chemistry. This colorless, diamagnetic solid is amphoteric. 1.2 Structure It crystallises with the rutile structure, wherein the tin atoms are six coordinate and the oxygen atoms three coordinate. SnO2 is usually regarded as an oxygen-deficient…

Synthesis of Schiff base Method preparation for Schiff base ligand is a straight forward synthesis and easily modified using different amines and carbonyl compound. This could be one of the reasons that make Schiff base ligand popular in coordination chemistry research. Synthesis of Schiff base ligand commonly, taking place in alcohol through condensation reaction of amines and carbonyl compound. The acid/base catalysis or heating is employed in the synthesis of Schiff base as their reactions…

Purpose of this lab is to find out how rate of reactions are affected by volume affects and determine which chemical affects the solution rate of reaction. Temperature was also a factor in discovering how it will affect the speed of the reaction. This was done by gathering certain chemicals and mixing them into a test tube then recording how long it took to change color. Temperature was tested by placing the test tube in ice water over a hot plate and slowlying increasing the temperature. Sodium…

Identifying an Unknown Compound Using Various Chemical Analysis Techniques Joshua Nash and Aquilla Young Abstract The introduction of this lab report exposes the reader to the different scientific concepts that are to be used such as melting point calculations, retention factors, and solubility in various aqueous solutions. The experimental provides the basics of using a melting point apparatus, determining solubility, and performing thin layer chromatography. In the results section the findings…

the branch of chemistry concerned about the three-dimensional course of action of particles and atoms and the impact of this on concoction responses. A critical branch of stereochemistry is the investigation of chiral atoms. Stereochemistry is otherwise called 3D science in light of the fact that the prefix "stereo-" signifies "three-dimensionality". The primary investigation of stereochemistry is on stereoisomers and traverses the whole range of natural, inorganic, organic, physical and…

How big is ‘small’? Is it a grain of sand, a speck of dirt, a strand of hair, a drop of water? Is it the size of what humans can see, with our own two eyes? Is ‘small’ bigger than that? Or is it much, much less? For years, people tried to discover the definition of small for the scientific world. Does ‘small’ act the same way as ‘big’? Can the movements of ‘small’ be described and categorized? All of these questions were analyzed over and over by scientist for hundreds of years, to form what is…

sample of the halogen to cyclohexane and recording the colours observed. Part 2 Identifying a halogen referring to the colours recorded in part 1, by reacting the halogen with a halide and observing the colour present. Part 3 Recording observing the physical changes that occur when an oxyanion, is tested using, i) Dilute HNO3, ii) Dilute AgNO3 and then acid, iii) BaCl2 and then acid, iv) Ammonium molybdate and if a percip. was seen is part iii) then dilute Nitric acid. Part 4 Using…