The apparatus required for paper chromatography
Question
The apparatus required for paper chromatography
Solution
The apparatus required for paper chromatography includes:
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Chromatography Paper: This is a special type of paper made from cellulose and is used to absorb the solutions.
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Capillary Tubes: These are used to apply the solution onto the chromatography paper.
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Solvent: This is the liquid that will carry the solute up the paper. The choice of solvent (also known as the mobile phase) depends on the specific experiment.
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Container: A container (like a beaker or jar) is needed to hold the solvent and the paper. It should be covered to prevent the solvent from evaporating.
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Pencil: A pencil is used to mark the baseline on the chromatography paper where the solution will be applied. It's important to use pencil as ink may interfere with the results.
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Ruler: This is used to measure the distance travelled by the solute on the paper.
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Tweezers: These are used to handle the chromatography paper as it should not be touched with hands.
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Drying Oven or Hair Dryer: This is used to dry the paper after the chromatography process.
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Retort Stand and Clamp: These are used to hold the chromatography paper in place in the container.
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Protective Wear: Gloves, lab coat, and safety goggles should be worn for safety reasons.
Similar Questions
What is the principle of the paper chromatography ?a.Partitionb.Adsorptionc.A and Bd.None of the above
Which is not a development technique of paper Chromatography ?a.Ascendingb.Circularc.Horizontald.Two dimensional
step of chromatography
What is chromatography used to separate?An insoluble solid from a liquidTwo or more liquids with different boiling pointsDifferent substances dissolved in a liquidTwo or more different gases2Which of the following statements about paper chromatography is not true?Less soluble substances travel further up the paperSubstances are separated based on how attracted they are to each phaseThe stationary phase is the paperThe mobile phase is the solvent3What are Rf values useful for?To determine how much solvent to use in the chromatography procedureTo calculate how much paper to useTo identify unknown samples by comparing them with known samplesTo determine the number of different substances in a solvent4How is the Rf value of a substance calculated?Distance moved by substance divided by distance moved by solventDistance moved by solvent minus distance moved by substanceDistance moved by solvent divided by distance moved by substanceDistance moved by substance multiplied by distance moved by solvent5In the core practical ‘Paper chromatography to investigate the composition of ink’, a line is drawn at the bottom of the paper onto which spots of known ink colourings plus an unknown sample are placed. There are several key points to remember when setting up this practical. Which of the following is incorrect? The line must be above the water levelThe line must be in penThe sides of the paper must not touch the beakerThe sample spots should not spread out too far6On a paper chromatogram only one spot is produced. What does this tell you? The paper was not large enoughThe substance being separated is an impure substanceToo much solvent was usedThe substance being separated is a pure substance
Which statement about paper chromatography is correct?1 pointa. A solvent is needed to dissolve the paper.b. Paper chromatography separates mixtures of solvents.c. The solvent should cover the baseline.d. The baseline should be drawn in pencil
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