by adding high sodium‚ low sodium‚ and very low sodium into three individual test tubes ‚ and measured the height of the foam then low sodium would have the highest reaction rate‚ this is because changes in the concentration of salt alter the electrostatic interactions between charged amino acids‚ so if salt is added the ability of enzymes to bind to the substrate is altered and the enzyme may or may not be able to bind to it. If I change the environment of the catalyst by adding room temperature
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Ore processing is also called ore dressing‚ mineral processing‚ ore concentration. Ore minerals under different physical and chemical properties‚ the finely ground ore after crushing‚ with re-election method‚ flotation‚ magnetic separation‚ electrostatic separation‚ will be useful to separate the mineral and gangue minerals and make all kinds of symbiotic of useful minerals are separated as much as possible‚ remove or reduce harmful impurities‚ for smelting or other industrial raw materials required
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The Ionic Lattice In most ionic compounds‚ the anions are much larger than the cations‚ and it is the anions which form the crystal array. The smaller cations reside in the holes between the anions. Basic Concepts: 1. Ions are assumed to be charged‚ incompressible‚ nonpolarizable spheres. 2. Ions try to surround themselves with as many ions of opposite charge as closely as possible. Usually in the packing arrangement‚ the cation is just large enough to allow te anions to surround it without
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Separation by difference in particle size: Sieving: - Is a way pf separating mixtures of solids‚ or solids and liquids with different sized particles - The mixture is poured through a sieve and the particles smaller than the sieve pass through while the larger particles are trapped by the sieve - The are commonly used for cooking - E.g. a mixture of rice and water is poured through a sieve to capture rice and remove the water Filtration - Is a technique commonly used for mixtures of solids and liquid
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Extended Diploma Applied Science Biochemistry & Biochemical Techniques Assignment 2 - Proteins Completion of this assignment meets the following grading criteria: Physiology of Human Body Systems P3 describe the primary and secondary structures of proteins M2 explain the tertiary and quaternary structures of proteins D2 discuss the relationship between the structure and function of proteins Task 1 – Proteins – primary & secondary structures 1. Draw the structure of a generalised
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types of bonds include metallic bonds and hydrogen bonding. The attractive forces between molecules in a liquid can be characterized as van der Waals bonds. What is an Ionic Bond? An ionic bond is a type of chemical bond formed through an electrostatic attraction between two oppositely charged ions. Ionic bonds are formed due to the attraction between an atom that has lost one or more electron (known as a cation) and an atom that has gained one or more electrons (known as an anion). Usually‚
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GRAVIMETRIC ANALYSIS Methods in GA Precipitation Method - involves isolation of an ion in solution by a precipitation reaction‚ filtering‚ washing the precipitate free of contaminants‚ conversion of the precipitate to a product of known composition‚ and finally weighing the precipitate and determining its mass by difference. From the mass and known composition of the precipitate‚ the amount of the original ion can be determined. Volatilization Method -the analyte or its decomposition products
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Experiment 3: Electronic structure‚ bonding and shape of some simple inorganic molecules. Introduction: In quantum chemistry‚ electronic structure is the state of motion of electrons in an electrostatic field created by stationary nuclei. The term encompass both the wave functions of the electrons and the energies associated with them. Electronic structure is obtained by solving quantum mechanical equations for the aforementioned clamped-nuclei problem. Electronic structure problem arise from the
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a chemical bond Bonding involves ________________. 2 Chemical Bonds‚ cont. In general‚ there are three types of chemical bonds: I. Ionic bond: Transfer of electrons from one atom to another. Seen primarily in M + NM. Bond is an electrostatic attraction of of a _______for an ______. II. Covalent bond: Results from a ________ of outermost electrons. A. __________covalent: ______ sharing of electrons. Observed in two of the same NM’s or in C-H bonds. B. ______covalent: ________
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When they are placed near each other the cups repel each other. They both have the same negative charge. The closer the cups were put toward each other the more they were repelled as evidenced by their threads being pushed apart as well. Electrostatic force increases the closer they are and decreases the further apart they are. When one of these cups was placed very near small-uncharged pieces of paper‚ they jumped off the table and clung shortly to the cup. Some electrons are likely to be
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