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Chemistry, 29.08.2019 12:00 arnold2619
How many grams of a stock solution that is 85.5 percent h2so4 by mass would be needed to make 150 grams of a 45.0 percent by mass solution? show all of the work needed to solve this problem.
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Chemistry, 22.06.2019 17:10
)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.
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Chemistry, 22.06.2019 19:00
Convert the temperature of dry ice, –77 ∞c, into degrees fahrenheit and kelvin.
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How many grams of a stock solution that is 85.5 percent h2so4 by mass would be needed to make 150 gr...
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