**Gas Chromatography Analysis of a Four-Component Mixture**This example illustrates a gas chromatogram of a mixture with four components, showcasing their respective areas and retention times (RT).| Component | RT (min) | Area (mm²) ||-----------|----------|------------|| A | 2.564 | 2341 || B | 5.241 | 1278 || C | 1.904 | 4302 || D | 3.217 | 1987 |**Questions for Analysis:**A. Which compound do you suspect is the most volatile? Why?B. Calculate the percent composition of component D. **Explanation:**- **Retention Time (RT):** The time taken for a compound to travel through the chromatography column to the detector. Lower RT suggests higher volatility.- **Area under Peak:** Proportional to the concentration of the compound in the mixture.**Steps:**1. **Identify Volatility:** - The compound with the shortest RT is typically the most volatile.2. **Percent Composition Calculation:** - Use the area of each compound to determine the percent composition.This exercise helps in understanding compound behavior in gas chromatography, focusing on volatility and compositional analysis.

In gas chromatography Less volatile compounds will interact more with the stationary phase, which…

2. A gas chromatogram of a four-(4)-component mixture had the following areas and retention times (RT). Component (RT) Area (min) (mm²) 2.564 2341 5.241 1278 1.904 4302 3.217 1987 A. Which compound do you suspect is the most volatile? Why? B D R Calculate the percent composition of component D.

2. A gas chromatogram of a four-(4)-component mixture had the following areas and retention times (RT). Component (RT) Area (min) (mm²) 2.564 2341 5.241 1278 1.904 4302 3.217 1987 A. Which compound do you suspect is the most volatile? Why? B D R Calculate the percent composition of component D.

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

**Gas Chromatography Analysis of a Four-Component Mixture**

This example illustrates a gas chromatogram of a mixture with four components, showcasing their respective areas and retention times (RT).

| Component | RT (min) | Area (mm²) |
|-----------|----------|------------|
| A | 2.564 | 2341 |
| B | 5.241 | 1278 |
| C | 1.904 | 4302 |
| D | 3.217 | 1987 |

**Questions for Analysis:**

A. Which compound do you suspect is the most volatile? Why?

B. Calculate the percent composition of component D.

**Explanation:**
- **Retention Time (RT):** The time taken for a compound to travel through the chromatography column to the detector. Lower RT suggests higher volatility.
- **Area under Peak:** Proportional to the concentration of the compound in the mixture.

**Steps:**

1. **Identify Volatility:**
- The compound with the shortest RT is typically the most volatile.

2. **Percent Composition Calculation:**
- Use the area of each compound to determine the percent composition.

This exercise helps in understanding compound behavior in gas chromatography, focusing on volatility and compositional analysis.

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