1-Calcular el descenso crioscópico de una solución de ClNa 0,5 molal sabiendo que Kc: 1,87ºC/1-
2-Calcular el punto de congelación de una sc 2 m de glucosa en agua. TºCagua= 0ºC, Kc= 1,86º/m.
3-Calcular el punto de congelación de una sc compuesta por 86g de glucosa (C6H12O6) y 500 gs de agua. Kc=1,86ºC/m.
4-Calcular el descenso crioscopico de una sc de anticongelante 10%m/msv disuelto en agua (C2H4(OH)2).
Answers: 1
Chemistry, 22.06.2019 05:30
Which other elements contain the same number of outer electrons as sodium
Answers: 3
Chemistry, 22.06.2019 12:00
What term is applied to a scientist who studies ancient life, including animal and plant fossils a. anthropologist b. dendroclimatologist c. geophysicist d. paleontologist
Answers: 2
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.
Answers: 1
Chemistry, 22.06.2019 19:30
Awoman's basketball has a circumference between 28.5 and 29.0 inches and a maximum weight of 20 ounces (two significant figures). what are these specifications in units of centimeters and grams?
Answers: 2
1-Calcular el descenso crioscópico de una solución de ClNa 0,5 molal sabiendo que Kc: 1,87ºC/1-
2-...
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