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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.
Which component has Rf value of 1?
Blue.
What are largest and smallest Rf values?
The largest Rf value is 1, which occurs when the compound remains at the origin of the chromatogram and does not move at all. The smallest Rf value is 0, which happens when the compound moves with the solvent front and does not adhere to the stationary phase.
What is Round to the place value mean?
round to the place value of the bold digit of 57,294
How do you round 197.0853 to nearest tenth?
It depends on your rounding rules. The 'averaging rule' is this: 1) If the placement decimal value is 5 or higher, round up. 2) if the placement decimal value is 4 or lower, round down. For this rule, the above number will round to 197.1 If you use the 'truncation rule', you always drop ANY value at that point. For this rule, the above value will round to 197.0
