The effect that arises if larger fractions are collected in column chromatography experiments should be determined. Concept introduction: A separation technique used for the segregation of components of chemical mixture based on the difference between the adsorption of different components in stationary and mobile phase is called column chromatography. It is used for purification or segregation of compounds. It consists of two phases namely: Stationary phase (solid) Mobile phase (generally liquid) Silica gel is commonly used as the stationary phase.

Question

Complete the following table of reagents – think carefully about the stoichiometry. You will need to write these down to carry out the experiment. For each gram of benzil starting material. Molecular Mass Reagent Volume (mL) density Equivalents Amount required (g/mL) weight (g) (mmol) (g/mol) benzil 210.23 4.75 1.00 1.00 urea 60.06 0.432 1.75 7.19 Sodium hydroxide (30% w/v solution) 39,847 4 1.2 4.0 loo What volume of ethanol is required, per gram of benzil, to generate a solution with a concentration of 0.33M? Show your working.

Answer 1

Question

Chapter 9, Problem 2Q

Interpretation Introduction

Interpretation:

The effect that arises if larger fractions are collected in column chromatography experiments should be determined.

Concept introduction:

A separation technique used for the segregation of components of chemical mixture based on the difference between the adsorption of different components in stationary and mobile phase is called column chromatography.

It is used for purification or segregation of compounds. It consists of two phases namely:

Stationary phase (solid)

Mobile phase (generally liquid)

Silica gel is commonly used as the stationary phase.

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