Determine the molar mass of the unknown substance
The density of cyclohexane is 0.779 g/ml. A 0.2080 g sample of an unknown substance was dissolved in the 20.0 ml of cyclohexane. The freezing point depression was 2.1 degrees C. Determine the molar mass of the unknown substance.
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Compute the speed of Halley’s Comet at perihelion. Deduce the answer as the ratio to the orbital speed of Earth.
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The Fermi energy for copper is around 7.05 eV. Copper consists of a density of 8920 kg/m3 and an atomic mass of 63.5. On average, determine how many electrons does an atom contribute to the conduction band?
A 2.0 liter flask contains 2.0 mol of H2S, 0.40 mol of H2, and 0.80 mol of S2 At a particular temperature. Estimate the equilibrium constant for the reaction
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Provide the structure of the major organic product that results when the 4-methylhexanal is heated in base and undergoes and aldol addition followed by a dehydration.
A proton that consists of a mass m and is moving at 290 m/s in the positive direction experiences a head-on elastic collision with a stationary boron nucleus of mass 10m. Determine the velocities of the proton and the carbon nucleus after the coll
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Show it in my post "Discussion Question: "In what ways do personal identity and self-concept influence an individual's motivations for engaging in addictive beh
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