0
What else can I help you with?
What is the minimum value of Rf?
Zero
How do you work out RF value?
Rf = distance to color/distance to front line
Why does carotene have the highest Rf value?
The Rf value of the xanthophyll is two thirds that of carotene because xanthophyll has an H bond with cellulose, which slows it down, and makes it less soluble in the solvent. Carotene is more soluble in 9:1 petroleum-ether acetone solution, which caused it to be carried higher and have a larger Rf value.
What does it mean when the Rf value is less then 0?
When the Rf value is zero, it generally refers to the position of the substance in the chromatogram. This means it did not move of that origin point.
Rf value of beta-carotene?
college bio lab. we got 1, using beta carotene as the front. its traveled 10.8cm
What do the Rf values indicate about the relative solubility of the pigment in the the solvent?
The Rf values do not indicate the solubility of a substance. The Rf value or retardation factor is the ratio of the distance traveled by the center of a pot to the distance traveled by the solvent front in chromatography.
Is rf value is negative or not?
The RF value, or retention factor, is a measure used in chromatography to indicate the relative distance traveled by a compound compared to the solvent front. By definition, RF values range from 0 to 1, where 0 indicates that a compound did not move from the origin and 1 indicates that it moved with the solvent front. Therefore, RF values cannot be negative.
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 of benzoic acid in ethyl acetate?
The RF value of benzoic acid in ethyl acetate is 0.68.
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
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
