Why do we need to cover the beaker with aluminum foil or saran wrapTo prevent the mobile phase from evaporatingO To prevent any outside dust from getting inTo prevent the stationary phase from evaporatingTo speed up elution What is the Rf value given the following information:Height of Chromatography Paper: 5.0 cmDistance from Bottom of Paper to Origin: 1.5 cmDistance from Origin to Spot: 1.6 cmDistance from Origin to Solvent Front: 2.9 cmYour Answer:Answer

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Chemistry

Why do we need to cover the beaker with aluminum foil or saran wrap

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Question

Why do we need to cover the beaker with aluminum foil or saran wrap
To prevent the mobile phase from evaporating
O To prevent any outside dust from getting in
To prevent the stationary phase from evaporating
To speed up elution

What is the Rf value given the following information:
Height of Chromatography Paper: 5.0 cm
Distance from Bottom of Paper to Origin: 1.5 cm
Distance from Origin to Spot: 1.6 cm
Distance from Origin to Solvent Front: 2.9 cm
Your Answer:
Answer

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