The average kinetic energy of the molecules in a gas sample depends only on the temperature, T. However, given the same kinetic energies, a lighter molecule will move faster than a heavier molecule, as shown in the equation for rms speed rms speed = where R = 8.314 J/(mol·K) and M is molar mass in kilograms per mole. Note that a joule is the same as a kilogram-meter squared per second squared (kg-m²/s²). What is the rms speed of Cl₂ molecules at 383 K? rms speed: 3RT M What is the rms speed of He atoms at 383 K? rms speed: m/s m/s

Q: Draw the major product of this reaction. Ignore inorganic byproducts. HBr (1 equiv) Select to Draw

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Q: A. B. HBr,CCI4 HBr,ROOR HBr,CCI4 HBr,ROOR

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A: Double bond is electron rich so it can abstract H+ .

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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.