CH2 CH,

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A:

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A: T = 250C = 25 + 273.15 = 298.15K  Total Pressure (PT) = 748mmHg Pressure of water (PH2O) = 23.7mmHg ...

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Q: Question attached

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Q: Question attached

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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.