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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
If the solvent front moves 8 cm and a component in a sample being analysed moves 3.2 cm from the baseline what is the Rf value for this component?
The Rf value is calculated by dividing the distance traveled by the component (3.2 cm) by the distance traveled by the solvent front (8 cm). So, Rf = 3.2 cm / 8 cm = 0.4.
How do you solve the Rf value in Column Chromatography?
Measure the distance from your marked pencil line to the solvent front. Also measure the distance fomr the marked pencil line to the middle of the spot, and divide this by the first distance. This value will be between 0 and 1.
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.
Which component has Rf value of 1?
Blue.
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
How do you find the rf value?
the rf value equals the distance of the component from the starting point divided by the distance of the solvent from the starting point.
What is the full name of Rf value?
The full name of Rf value is the Retention Factor value. It is a measure used in chromatography to quantify the movement of a particular component relative to the solvent front.
If the solvent front moves 8 cm and a component in a sample being analysed moves 3.2 cm from the baseline what is the Rf value for this component?
The Rf value is calculated by dividing the distance traveled by the component (3.2 cm) by the distance traveled by the solvent front (8 cm). So, Rf = 3.2 cm / 8 cm = 0.4.
Define the Rf value?
RF value (in chromatography) The distance travelled by a given component divided by the distance travelled by the solvent front
How do you solve the Rf value in Column Chromatography?
Measure the distance from your marked pencil line to the solvent front. Also measure the distance fomr the marked pencil line to the middle of the spot, and divide this by the first distance. This value will be between 0 and 1.
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 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.
