Based on the given data, construct and evaluate the calibration curve by plotting absorbance versus concentration. Calculate the mean concentration of Copper and Chromium in the unknown tap water sample

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Q: What is the molarity of an aqueous solution that contains 0.0720 g C.H.O: per gram of solution. The…

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Q: 20. How many grams of Ca metal are produced by the electrolysis of the molten CaBr2 using a current…

A: 20.

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Q: 9A Moving to another question will save this response. Question 14 Consider the following reaction…

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Q: lonic bonds arrange atoms in one direction True False O O

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Q: A Moving to another question will save this response. Question 5 11) For the reaction at 25°C:…

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Q: How many electrons in the valence shell for Zirconium atom (Zr) 6 electrons O 10 electrons 2…

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Q: Begining with 1 M concentrations of each reactant and product at pH=7 and 25.0 degrees C, calculate…

A: The redox reaction is: Pyruvate + NADH + H+(aq)  ---> Lactate + NAD+(aq) The half-reactions are:…

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Q: Can you explain the stereochemistry of the result?

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Q: ionizes to the greatest extent?

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Q: A Moving to another question will save this response. Question 10 How much energy will be released…

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Q: Determine if the synthesis of sulfuric acid is a spontaneous reaction at 25°C. Chemical Equation: S+…

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Q: Determine the oxidation state of: a. Chlorine in HClO4         b. Manganese in MnO4–2

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Q: Itaic cells Electrolytic Cells

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Q: A Moving to another question will save this response. Question 4 For the complexes: D(Co(NO))2-…

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A: Some biological channels perform active transport of Ca2+ ions into the cell across the membrane…

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Q: What is the major product of this reaction? * 1) xs LIAIH4 2) H2O HO, H. HO, Но. HO HO HO

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Q: NES.pdf + File |…

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Q: (f) H С —F: (c) 0-Sn-O :O: (d) F F (g) F F : : .. B :F: :F : (e) H-O=F:

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UV Visible Spectroscopy

Spectroscopy refers to the absorption or emission of light or other radiations by matter. When a substance or chemical absorbs light or radiation, they reach an excited state followed by de-excitation or emission of the light or radiation forming distinct spectra. UV-visible spectroscopy or  ultraviolet-visible refers to the absorption and emission in the ultraviolet and visible regions of the electromagnetic spectrum.