### Chemistry Exercises and Solutions#### Exercise 4:In your General Chemistry Lab, you and your partner inject a mixture of the three molecules shown below (all isomers of C\(_7\)H\(_14\)) into a Gas Chromatograph. Choose the correct elution order for these molecules, from smallest retention time to largest, from the given choices.**Diagrams of Molecules**:- **A** ``` CH3 | CH3-C-CH3 | CH3 ```- **B** ``` CH3 | CH3-CH2-CH2-CH3 ```- **C** ``` CH3-CH2-CH2-CH2-CH3 ```**Choices:**- A < B < C- C < A < B- B < A < C- B < C < A---#### Exercise 5:Select the picture of the type of orbital in which you would find the highest energy electron in a neutral iron atom.**Diagrams of Orbitals**:1. The first diagram shows a purple clover-shaped structure with four lobes extending along the x, y, and z axes.2. The second diagram shows a green dumbbell-shaped structure extending along the z-axis with a torus around the center.3. The third diagram shows an orange donut-shaped structure centered on the x, y, and z axes.**Choices:**- none of these choices are right---#### Exercise 6:Which of the following electron transitions in a hydrogen atom represents an absorption of the smallest frequency of light?**Choices:**- n = 2 to n = 3- n = 6 to n = 5- n = 1 to n = 4- n = 3 to n = 4---#### Solution Insights:**Exercise 4**: The order of elution is generally dependent on the molecular structure and boiling points. The most branched molecules (typically lower boiling points) will elute first, while the least branched (higher boiling points) elute last.**Exercise 5**: The highest energy electron in a neutral iron atom traditionally occupies the 3d orbital, usually visualized as the clover-shaped structure.**Exercise 6**: The absorption of the smallest frequency corresponds to the smallest energy

Hello. Since you have posted multiple questions and not specified which question needs to be solved,…

In your General Chemistry Lab, you and your partner inject a mixture of the three molecules shown below (all isomers of C7H14) into a Gas Chromatograph. Choose the correct elution order for these molecules, from smallest retention time to largest, from the given choices. A В A

In your General Chemistry Lab, you and your partner inject a mixture of the three molecules shown below (all isomers of C7H14) into a Gas Chromatograph. Choose the correct elution order for these molecules, from smallest retention time to largest, from the given choices. A В A

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter34: Miscellaneous Separation Methods

Section: Chapter Questions

Problem 34.9QAP

See similar textbooks

Similar questions

Need answer step by step
20,18,2,4,15,15,10 Using these data, construct a 80% confidence interval for the average net change in a student's score after completing the course. Assume the population is approximately normal. Construct the 80% confidence interval. Round your answer to one decimal place.
HDPE and PS are both inert to bases and acids, which plastic would you rather chose to put 1 Liter of 6M HCl for general chemistry lab? Explain why.
1,3,5 what the correct answer?
analyte concentration(C)(mg/ml) injection volume (ul) elution time (time) peak DAD signal(mAU) caffeine 1 1 4.67 302.85 aspartame 5 1 7.53 15.83 benzoic acid 1 1 8.14 89.98 saccharin 1 1 1.91 84.86 mixture(add everything above with 1:1:1:1 ratio) 1 4.47 69.58 How to get the concentration of the mixture in this case?
anch of the following components cannot be detected by gas chromatography? 4 Essential oils Alcohols b) Volatile compounds d) Non-volatile compounds 13- is measured as time elapsed from the point of injection to the peak maximum? a)-Column efficiency d)- Delectability c)-Retention time 14- Which of the following can be used to detect the components in gas chromatography a) non-volatile compounds b) volatile compounds c) Salts d) b&c 15-Which of the following methods is often referred to as mechanical separation processes. a)-Gas Chromatography b)-column chromatography c)- Sedimentation 16- For obtaining better resolution in TLC. and then developed with a second solvent at right angles to the first a) Stepwise b) Descending e) Ascending 17- This is defined as transport of electrically charged particles in a direct-current electric field a) ion exchange chromatography b) Electrophoresis c) ultracentrifuge d) exclusion 18-This figure indicates to schematic Diagram of a) Gas chromatography…
The spectroscopic data in the table is generated with five solutions of known concentration. Concentration (M) 0.0133 m= 0.0266 0.0532 0.106 0.213 Absorbance 0.1271 What is the intercept of the linear regression line? 0.08531 0.5388 1.069 Use a spreadsheet program, such as Microsoft Excel, to graph the data points and determine the equation of the best-fit line. 1.954 What is the slope of the linear regression line formed by these points? M-1
A sample of explosives residue is dissolved in an appropriate solvent and is injected into HPLC. The column contains a non- polar stationary phase. The sample revealed three chemical compounds that are commonly present in homemade explosives. ТAТP DADP HMTD 1 2 3 4 5 6 7 8 Retention time (minutes) a) determine the retention time of TATP. b) which one elute first :DADP,TATP or HMTD? c) State and explain which compound is most polar. d) If you are investigating this terrorist attacks, state one way in which the information in the chromatogram would be useful.
Spot in R lane Spot in Y lane Upper spot in U lane Distance traveled by spot (cm) Lower spot in U lane 3.00 Spot in B 5.00 lane 1.20 4.70 2.90 Solvent Rf front (cm) 5.90 5.90 5.90 5.90 5.90 Based on your TLC, which best describes the identity of the unknown food dye?
Question: Using a sample of aspirin for HPLC analysis. If the aspirin was contaminated (wet) with trace amounts of a solvent such as ethyl acetate, hexane, or water, would this contaminant be detected and appear as a peak in the HPLC chromatogram? Briefly explain based on the type of detector used in HPLC analysis and what type of compounds can be detected. My Answer: The HPLC analysis detects chromophores, compounds with multiple double bonds. Since water, ethyl acetate, and hexane all lack multiple pi bonds this will not be detected in the HPLC. -Question for you, is this complete (and correct), and should I include anything about UV detection? Is UV detection used in HPLC? I thought it was only used on TLC to show compunds that arent visable.
use analytical separation and analyses to outline analytical separation method protocols that can be employed to recover extremely high deposit of heavy metals and particulate matter in the river making wholesome for drinking in illegal mining communities .
PLEASE Answer within 20-30 minutes. Thank you!