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Introduce students to separation science with this easy-to-use kit. Students separate the components of 2 types of mixtures, calculate retardation factors, and make connections between separation techniques and solving real-world problems. Kit materials are sufficient for a class of 10 student groups.
A great introduction to separation science
In this introductory kit, students are introduced to paper chromatography as a means for separating a mixture. They separate the components of a universal pH indicator to gain practice in chromatography technique. Then students separate the components of wet-erase markers and calculate the retardation factors. They use this data to understand how chromatography could be used to identify unknown components of a mixture. This activity requires approximately 70 minutes of classroom time, which can easily be divided between 2 class periods. Kit materials are sufficient for a class of 10 student groups.
|Chromatography Chamber with Lid||10||Included|
|Bogen Universal pH Indicator, 7 mL||1||Included|
|0.1 M Sodium Hydroxide, 30 mL||1||Included|
|Sodium Chloride, 20 g||1||Included|
|Micro Tip Pipets||10||Included|
|Digital Resource Card||1||Included|
|Teacher's Manual with Reproducible Student Guide||1||Included|
|Scissors||10||Needed, Not Included|
|Pencils||10||Needed, Not Included|
|Test Tube Racks||10||Needed, Not Included|
|Metric Rulers||10||Needed, Not Included|
|Graduated Cylinder, 100 mL||1||Needed, Not Included|
|Container, 1,200 mL (or larger)||1||Needed, Not Included|
|Balance||1||Needed, Not Included|
|Labeling Marker||Needed, Not Included|
|Paper Towels||Needed, Not Included|
|Distilled or Deionized Water||Needed, Not Included|
|Drying Oven (optional)||Needed, Not Included|