Chemical compound

Unknown Samples Objectives The experiments were carried out in order to identify 15 samples, through their physical and chemical properties. Theory A precipitation reaction is one which produces an insoluble salt as product. An example would be; Ca(NO3)2 + H2SO4 = CaSO4 + 2HNO3 The calcium salt is insoluble. Precipitation reactions could be used in this experiment to eliminate compounds while attempting to identify others. Halides react with AgNO3 to form insoluble halides. These ions form…

These substances or materials can be real, solid or something that we taste, feel or even smell. The chemicals that the substances are made from generated chemical reactions. The chemical reactions that were being studied caused one famous scientist to develop a law about chemical reactions. Joseph Louis Proust was a French Chemist who came up with a law in the 18th century that governed the chemical reaction. Proust’s law or discovery is known as the Law of Constant Composition, also called…

acid from the toluene-benzoic acid mixture, using oxidation-reduction reaction (chemical properties) and difference of solubility (physical properties) –Expt. 1 2. To learn how to recrystallize the solid organic compounds well for getting more purified compounds –Expt. 2 3. To find which differences between raw product and recrystallized product are observed. –Expt. 2 4. To determine melting point range of organic compounds with digital melting point apparatus, splitting into some parts in terms…

melting point near 630 degrees Celsius. If copper II chloride is in its dihydrate form, it is a green-crystalline solid. The formula weight of the dihydrate form is 170.48 g/mol. Chemical properties include being able to be soluble in ammonia. Synthesis Methods of Copper (II) Chloride There are different ways this certain compound can be synthesized and prepared. If combining and heating elemental copper and diatomic…

obtained from chemical compounds. This curiosity was noted previously by Henry Cavendish, but it remained anonymous. ("Neon," 1999). In 1898, a Scottish chemist Sir William Ramsay (1852-1916) and English chemist Morris M. Travers (1872-1961) discovered neon just after they discovered the element krypton that same year. ("Neon," 2000). Physical Description Neon is the second element in Group 18 of the periodic table, a group of elements known as the inert or noble gases. Neon’s chemical…

Carbonyl compounds undergo various types of reaction. In these reaction the carbonyl carbon or carbonyl oxygen is prone to attack generally by a nucleophile. Different types of carbonyl compounds undergo different types of reactions and the mechanisms of them are also different. The products or by-products or intermediate products of these reactions are very much useful in laboratory synthesis, industry etc. here we will discuss some very much important reactions which are very important for…

arranged and by their chemical properties, atomic masses, and electron configurations. In order to construct the periodic table, every element had to be discovered. Elements such as gold, tin, lead, and copper have been widely known and used since ancient times, however, the first discovery of an element wasn’t made until 1649 by Hennig Brand when he discovered phosphorus. Over the next 200 years, chemists would acquire the basic knowledge of the physical properties and compounds of elements…

something that people use in everyday life. All the food we eat has to do with chemistry. Food has organic compounds that change when they are cooked. It is used in our everyday life when because you need chemistry to do everything. Stoichiometry is the relationship between the relative quantities of substances taking part in a reaction or forming a compound. The coefficients in a balanced chemical equation represent moles of reactants and moles of products. The mole ratio of reactants and…

reported. The theoretical spectrograms for FT-IR spectra of the title molecule have been constructed. The 1H and 13C nuclear magnetic resonance (NMR) chemical shift of the molecules are calculated by the gauge independent atomic orbital (GIAO) method and compared with experimental results. Further, density functional theory (DFT) combined with quantum chemical calculations were done to find out the first-order hyperpolarizability. The calculated HOMO and LUMO energies shows that charge transfer…

Stereochemistry (Reaction of Haloalkanes) Stereoisomers are compounds having the same molecular formula but they are different in the special arrangement. Stereoisomers fall into two main categories Geometric isomers- This is further subdivided into cis and trans isomers. Optical Isomers In this section, we will discuss the optical isomers and how their involvement in the reactions of haloalkanes. Optical Isomers Optical isomers are compounds having the same molecular formula but they differ in…