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Will acetaminophen or phenacetin have a higher Rf if you carry out a TLC separation of on a silica gel using a non-polar developing solvent?
Phenacetin will have a higher Rf value than acetaminophen in a TLC separation on silica gel using a non-polar developing solvent. This is because phenacetin is more non-polar than acetaminophen, causing it to move further up the TLC plate and have a higher Rf value.
What is the rf value of cocaine?
Rf is about .45
What is the Rf value of salicylamide?
It will depend on the solvent system you are using.
What is rf value and how is determine?
the mobility of any component in a particular solvent is referred to as its RF value. Mathematically, RF value = distance travelled by solute/ distance travelled by the solvent
What is an rf value used for?
The rf value is shorthand for the retention value of a substance. It is used in chromatography to determine the components of an unknown sample.
What is the maximum and RF value can be?
The maximum RF value that can be obtained is 1.0. This means that the substance travels the full distance of the chromatography medium being used. Any RF value greater than 1 is not physically possible.
How does saturation effect RF value?
In general, as saturation increases, the RF value decreases. This is because an increase in saturation tends to increase retention of the compound on the stationary phase, resulting in a lower RF value. Conversely, lower saturation levels may allow the compound to move more freely, leading to a higher RF value.
What is the RF value for red ink blue ink and green ink?
the Rf value value is 8.44 as the particles are lighter than the solvent
Why is acetaminophen soluble in 5 percent sodium hydroxide but phenacetin is not?
Acetminophen is solube in 5% NaOH, and phenacetin is not because acetminophen is a stronger acid than water, and phenacetin is not appreciably acidic.
What do the Rf values indicate about the relative solubility of the pigment in the the solvent?
The Rf value indicates the ratio of the distance a pigment travels compared to the distance the solvent travels on a chromatography plate. The higher the Rf value, the more soluble the pigment is in the solvent used for the chromatography.
What is the relationship between chain length and Rf value?
As a general rule the longer the carbon chain the greater the Rf value.
What is the minimum value of Rf?
Zero
