organic matter‚ compost‚ next being 3:2 soil and finally sedentary soil having the lowest pH of them all. The pH of soil pH is affected by both acid and base-forming ions. The acid forming cations are positively charged ions they commonly include hydrogen ions‚ aluminium ions ‚and iron(II and III ions). Base forming cations commonly comprise of calcium ions‚ magnesium ions‚ sodium ions and potassium ions. It is also known that the CEC is positively correlated with soil pH. As the dilution of the soil
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solutions formed due to intermolecular attractions between the solute and the solvent. A1. For Water-Soluble Compounds: Acetone – Water: Hydrogen bonding and van der Waals forces Acetone – Diethyl Ether: Dipole – (induced) dipole and van der Waals forces Sucrose – Water: Hydrogen bonding and van der Waals forces Ethyl alcohol – Water: Hydrogen bonding and van der Waals forces Ethyl alcohol – Dietheyl Ether: Dipole – (induced) dipole and van der Waals forces For Acidic Compounds:
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years six more plants were created on The Coromandel. Cyanide has been used all over the world to make the extraction of gold easier. Although cyanide is helpful in terms of recovering gold it has been used throughout history as a deadly poison. Hydrogen cyanide has been used to disinfect buildings and sodium cyanide was used for over 50 years to control coyote numbers in the US. Cyanide is an ion with a single negative charge formed between carbon and nitrogen. There is a triple bond formed between
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Structural Analysis of Serine Peptidase-Inhibitor Complexes When analyzing these structures‚ we observed a reasonably strong hydrogen bond interaction (distance ~ NVL ≫ AAoF ≈ NVoL. Surprisingly‚ the unmodified AAF compound showed a substantially higher level of activity over the unmodified NVL compound. Initially‚ we hypothesized that the modified compounds (No H-Bond) would be less active. To our surprise‚ both modified compounds‚ AAoF and NVoL‚ showed negligible activity (Figure 16). Additionally
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The Big Bang theory states that all the matter that is in the universe was once in a very small amount of space with infinite temperature‚ pressure‚ and density. This theory is well supported and there are many reason for it’s support. One main reason is that no one really has a clue and The Big Bang Theory seems far fetched but more reasonable than any other ideas that there are out there. Some of the important thing to know about the big bang to understand are the beginning and the few seconds
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we began naming acids and bases we must understand each term. A base is a compound that produces hydroxide ions when dissolved in water. An acid is a compound that produces hydrogen ions in solution is a hydrogen-ion donor‚ or electron –paired accepter. The name of the acid depends on the ion’s ending and the number of hydrogen atoms must be equal to the negative charge‚ and the name of a base depends on if it contains OH or hydroxide. The naming of an acid depends on the suffix of the cation or
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CO2 and H2O as main products. 2) A hydrocarbon is a molecule that contains only carbon and hydrogen 3) Combustion analysis of naphthalene‚ a hydrocarbon used in mothballs‚ produced 8.80g CO2 and 1.44 H2O. Calculate the empirical formula for naphthalene. 8.80g CO2 (find moles of Carbon by dividing the molar mass and doing the molar ratio of C and CO2 = 0.200mol C. 1.44H2O (find moles of Hydrogen by dividing the molar mass of water and doing the ratio of 2moil H/1molH2O) 0.160mol H divide
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Methylene blue can act as an artificial hydrogen acceptor; when this dye is reduced by accepting hydrogen atoms it goes colourless. As such‚ it can be used to guage the rate of respiration by measuring the time taken for it to turn colourless. Methylene blue‚ acting as a hydrogen acceptor‚ is decolourized during the respiration of yeast. By measuring the time taken for a fixed amount of the dye to be decolourized‚ the relative rate of respiration (a catabolic process) can be deduced. Results:
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ELECTROLYSIS Electrolysis decomposition of compound using electricity Electrolyte an ionic compound which conducts electric current in molten or aqueous solution‚ being decomposed in the process. Electrode a rod or plate where electricity enters or leaves electrolyte during electrolysis. Reactions occur at electrodes. Discharge the removal of electrons from negative ions to form atoms or the gain of electrons of positive ions to become atoms. Anode
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with potassium hydroxide in aqueous ethanol. The 3-chloro-3‚ 7-dimethyloctane will lose a hydrogen from three different carbons that cause the formation of three constitutional isomers. If the hydroxide ion attacks a hydrogen on the 3-methyl carbon‚ then 2-ethyl-6-methyl-1-heptene will be the product. If a hydrogen on the carbon-2 was attacked‚ then the product would be 3‚ 7-dimethyl-2-octene. If a hydrogen was attacked on the carbon-4‚ then 3‚ 7-dimethyl-3-octene will result (Figure 1). As a side
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