Chromatography

Chromatography

Multiple Choice

what is a formulation?

• pure substance

• something created to be useful

• what is inside a compound

Multiple Select

which of these are formulations

• petrol

• milk formula

• medicines

• pure water

• 24 carat gold

Multiple Select

link the definition with an example: solvent

• solid part of a solution

• liquid part of a solution

• salt water

• product made when a solute is dissolved in a solvent

• water

Multiple Select

link the definition with an example: solution

• solid part of a solution

• liquid part of a solution

• salt water

• product made when a solute is dissolved in a solvent

• water

Multiple Select

link the definition with an example: solute

• solid part of a solution

• liquid part of a solution

• salt

• product made when a solute is dissolved in a solvent

• water

Multiple Choice

how does water travel up the paper?

• gravity

• capillary action

• artery action

• vein action

• pure will

Multiple Choice

what is the solvent front

• where the solvent reaches

• the opposite of the solvent back

• where the furthest dye finishes

• where the pen is placed at the start

Multiple Choice

what is the base line drawn in

• pen

• pencil

• the same as the test material

Multiple Choice

which travels the furthest?

• most soluble

• least soluble

Multiple Choice

how do you calculate Rf value?

• distance travelled by spot/ total of solvent

• distance of solvent / distance traveled by spot