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What is the concentration of iron (II) ion in a sample of drinking water using colorimetry, if the absorbance of the sample is found to be 0.294 and the molar absorption coefficient of iron (II) complex is 10,500 M^-1 cm^-1 at the wavelength of 505 nm?
asked
Jan 30
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Analytical Chemistry
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A chemical plant has a mixture of ethanol and water with a known composition. The plant wants to separate the mixture using a distillation column. As a chemistry student, design a feasible distillation column that can effectively separate the mixture with the given composition. You need to specify the height, diameter, number of trays, reflux ratio, and other necessary parameters needed for designing the column. You are also required to provide an explanation for the choice of each parameter.
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Jan 22
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Psychology
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What is the misinformation effect?
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Jan 13
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Psychology
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In how many ways ca a living organism obtain chemical energy
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Dec 31, 2024
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Science
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What system, which includes the skin, plays important roles in protection, sensing stimuli and thermoregulation?
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Dec 27, 2024
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Science
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