sample of oxygen gas has a volume of 640. mL at a temperature of 23°C. At what temperature (in °C) will the volume of the oxygen be 820. mL (P and n are constant)?

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A: Kc is the equilibrium constant in terms of the concentration of the reactants and products.

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Q: piece of unknown metal has a mass of 217 g. The metal absorbs 1.43 kJ of heat, its tempeature…

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Q: What is the IUPAC name for this group? сH CHCH2- CH3

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Q: 6.) Throat Lozenges A 188-mg sample of a nonelectrolyte isolated from throat lozenges was dissolved…

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Q: The equilibrium constant, K, for the following reaction is 1.80x10-4 at 298 K. NH4HS(s) NH3(g) +…

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Q: d Reduction (FADH₂) R' + FADH ₂

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Q: Dinitrogen tetraoxide is a colorless gas that dissociates into nitrogen dioxide, a reddish brown…

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Q: 15. It is believed that Alexander the Great was poisoned by an organic compound known as Strychnine.…

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Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.