Introduction: Sulphate ions are a part of the earth’s crust and usually occur in natural waters. Many sulphate compounds are readily soluble in water. Most of them originate from the oxidation of sulphate ores, the solution of gypsum and anhydrite, the presence of shales, particularly those rich in organic compounds, and the existence of industrial wastes. Atmospheric sulphur dioxide formed by the combustion of fossil fuels and emitted by the metallurgical roasting processes may also contribute to
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THE EXHAUST SYSTEM CONVERTER ASSEMBLY The exhaust system converter for hydrogen engines plays a very vital role in the reduction of the amount of water vapor emitted into the environment. This assembly could be installed in hydrogen cars to cool vapors converting it to water and may be preserved for drinking. Therefore, the converter converts as much vapor as possible into water and returning condensed water into tank. It could also be safe to drink this water if collected in a clean non-corrosive
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ABSTRACT: This experiment was to observe diffusion happening within the cells, and to help understand the sizes of molecules and how the chemical reactions take place. Therefore, the experiment was conducted using glucose and starch solution inside the dialysis tube. The starch and glucose that was put inside the dialysis tube help identify which of the two will reacted with potassium iodide inside the breaker, as the latter passed from the beaker into the tube, the glucose/starch solution's change
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Caffeine was isolated from tea by a sequence of solvent extractions of hot water and dichloromethane. The solid- liquid extraction, which involved hot water, removed the caffeine from the tea leaf and left behind cellulose and soluble organics. The lab actually began with the liquid- liquid extraction that involved dichloromethane and tea, and partitioned components in the layers based off their solubility in the two solvents. Since caffeine is moderately polar, it dissolves in hot water but more
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In the lab, All That Glitter, students learned to calculate and differentiate the density of different forms of matter. Students calculated the density of pre-1982 pennies, post-1982 pennies, and an unknown metal sample. In order to complete the lab, students first took ten pre-1982 and post-1982 pennies and carefully dried them. Afterwards, the pennies were placed on a digital scale in order to find the mass. Students then found the volume of the pennies by filling the graduated cylinder with
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For this examination, we quantified the speed of the compound response of hydrogen peroxide and guaiacol with the chemical peroxidase, removed from turnips. We tried this response first, by using three pH levels; pH 4.0, pH 7.0 and pH 8.0 to see which pH was ideal for the response of hydrogen peroxide and guaiacol. We utilized a colorimeter to quantify the measure of light that went through the substance at various times amid the response. Based off of our perusing of the colorimeter, we ascertained
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Fetal Pig Dissection: Anatomy and Physiology of Systems Introduction Pigs are from the mammalian clade. They are farming animals that that require the same systems as humans. Pigs and humans share some of the physiological concepts as humans. With them sharing some of the same physiological as humans it allows scientist and individuals to understand the anatomy and physiology of the systems we share. These systems include lymphatic, digestive, respiratory, and the skin system. The two frequently
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Protein Spy Researchers at Rice University have a method to rapidly trigger the universal tagging of proteins being produced by a cell. The tagging method they use is like a switch. They tag proteins with a controllable enzyme switch. This allows researchers to get a snapshot of proteins being produced by a cell at any time. This is a divide and conquer kind of strategy. What hypothesis was tested? The hypothesis that was tested was attach bio-orthogonal that is non-interfering an amino acids to
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Growing grapes (Vitis vinifera) isn't an exact science, and you can't predict exactly when you'll get to enjoy your harvest. Grapes of various varieties are grown throughout U.S. Department of Agriculture plant hardiness zones 2 through 10 where they are ready for harvest anywhere from late summer to early fall. The exact harvest time depends on the grape variety, the amount of sunlight the vine received and the specific growing conditions your grapes experience during the season. As a result, you
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Introduction Multidrug resistance (MDR) is one of the major issues to be addressed in treating many diseases including cancers. One of the well-established causes for the multidrug resistance involves over expression of members of ATP binding cassette (ABC) proteins 1. The transporters play a key role in drug availability, metabolism and toxicity. Imatinib mesylate, a tyrosine kinase inhibitor, is a successful chemotherapeutic drug for the treatment of chronic myeloid leukemia (CML). However
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