Paper Chromatography

The video tutorial introduces paper chromatography, an analytical technique used to separate mixtures. It explains the materials needed, including a coffee filter, water, and a black marker. The tutorial describes the setup and execution of the experiment, highlighting the role of molecular polarity in the separation process. Observations reveal that the black marker is composed of multiple dyes. The video concludes with suggestions for further experiments using different markers and solvents.

What is the primary purpose of paper chromatography?

• To measure the thickness of paper

• To create colorful patterns on paper

• To test the durability of paper

• To separate mixtures into individual components

Which of the following is NOT needed for the paper chromatography experiment?

• Room temperature water

• A permanent marker

• A transparent glass or cup

• A paper coffee filter

How does molecular polarity influence paper chromatography?

• It affects how dyes move up the paper

• It changes the temperature of the solvent

• It alters the shape of the paper

• It determines the color of the dyes

Why is water used as the solvent in this experiment?

• Because it is similar in polarity to the dyes

• Because it is non-polar

• Because it evaporates quickly

• Because it is colorful

What is the first step in preparing the coffee filter for the experiment?

• Draw a line with the marker

• Cut it into a circle

• Fold it in half twice

• Dip it in water

What observation confirms the hypothesis about the black marker?

• The water turns black

• The marker line disappears

• Multiple colors appear on the filter

• The filter changes color

What is suggested as a variation of the experiment?

• Using a different color marker

• Using a different type of paper

• Using a permanent marker

• Using a larger cup