What is the objective of the experiment described in this laboratory manual? a. To measure the refractive index of a series of alcohols and a hydro...
What is the objective of the experiment described in this laboratory manual?
a. To measure the refractive index of a series of alcohols and a hydrocarbon to calculate the molar refraction of methylene and hydroxyl groups.
b. To measure the surface tension of pure liquids and solutions and verify the effect of some substances on the surface tension of water.
c. To determine the concentration of an unknown solution using a standard curve.
d. To determine the refractive index of a binary mixture (water-alcohol) of known proportions and construct the standard curve of the refractive index as a function of concentration.
a. To measure the refractive index of a series of alcohols and a hydrocarbon to calculate the molar refraction of methylene and hydroxyl groups.
b. To measure the surface tension of pure liquids and solutions and verify the effect of some substances on the surface tension of water.
c. To determine the concentration of an unknown solution using a standard curve.
d. To determine the refractive index of a binary mixture (water-alcohol) of known proportions and construct the standard curve of the refractive index as a function of concentration.
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Ed 
O objetivo do experimento descrito no manual de laboratório é medir o índice de refração de uma série de álcoois e um hidrocarboneto para calcular a refração molar de grupos metileno e hidroxila. A alternativa correta é a letra "a".
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