A chemist prepares a solution of potassium permanganate (KMnO4) by measuring out 3.8 mg of potassium permanganate into a 50. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mol/L of the chemist's potassium permanganate solution. Be sure your answer has the correct number of significant digits. mol L 0.0 X C E

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Q: Explain how each type of fuel cell works, especially from the chemistry point of view.

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Q: Which of the following compounds would reasonably be expected to be liquids at room temperature? ON₂…

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Q: 2) For compound 1 shown: a. Draw all the resonance contributors, if any, including proper electron…

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Q: Draw the major organic products of Hofmann elimination from the following amine. NH CH3

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Q: 1. a) Give the IUPAC name of the alkyne structure F below. b) Provide the products of A through E &…

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Q: 3) Draw the reaction scheme for the proton transfer reaction between diisopropylamine and ethoxide…

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Q: 0.04 mol diethylamine (C4H11N, pKb = 11.09) is titrated with 0.015 mol of HCl in a 1.00 L wash…

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Q: Leads to trans-4-nonene: H H H Br H Br CH,CH,CH,CH CH₂CH₂CH3 CH,CH,CH,CHs CH₂CH₂CH3 CH₂CH₂CH₂…

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Q: Molecule or Polyatomic C₂H4 SO4²- H3O* C₂H6 NH3 Lewis structure HH I H-C=C H "+"] H H H HH 1 H C C…

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Q: Draw a Lewis structure for SF, that has minimized formal charges. Include all nonbonding electrons…

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Q: Draw ortho-chlorotoluene

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Q: For many purposes we can treat nitrogen (N2) as an ideal gas at temperatures above its boiling point…

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Q: What is the percentage composition of oxygen in iron(II) oxide pentahydrate FeO.5H₂O?

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Q: Balance the following chemical reaction: • C6H5OH(1)+O2(g) --> CO2(g)+H2O(g)

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Q: Which of the following substances is MOST soluble in water? CHCl3 C6H14 C2H5OH C2Br4

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Q: e. d. H CH3 Br NaOCH3, CH₂OH 1. 03, CH₂Cl₂ 2. (CH3)₂S 1. BH3, THF 2, H₂O₂. NaOH

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Q: 6. You are working in the laboratory, preparing sodium chloride. Consider the following results for…

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Q: What is the molar concentration of potassium chloride (Formula Weight: 74.55g/mole) in a 5% (w/v)…

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Q: Name the following organic compound. H₂C H₂N- CO -ОН 2-aminebut-3-enoic acid A

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Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.