Chemistry, 04.07.2019 14:20, dulcejuarez2005
Two football players are running toward each other. one football player has a mass of 105 kg and is running at 8.6 m/s. the other player has a mass of 90 kg and is running at –9.0 m/s. the momentum of the system after the football players collide is kg • m/s.
Answers: 1
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)benzene and toluene form nearly ideal solutions. consider an equimolar solution of benzene and toluene. at 20 °c the vapour pressures of pure benzene and toluene are 9.9 kpa and 2.9 kpa, respectively. the solution is boiled by reducing the external pressure below the vapour pressure. calculate (i) the pressure when boiling begins, (ii) the composition of each component in the vapour, and (iii) the vapour pressure when only a few drops of liquid remain. assume that the rate of vaporization is low enough for the temperature to remain constant at 20 °c.
Answers: 1
Two football players are running toward each other. one football player has a mass of 105 kg and is...
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