Pentane Study guides, Class notes & Summaries
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![Chem 219: Module 2 Exam Questions With 100% Correct Answers](/docpics/4888665/660ab4147c151_4888665_121_171.jpeg)
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Chem 219: Module 2 Exam Questions With 100% Correct Answers
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Chem 219: Module 2 Exam 
Questions With 100% Correct Answers 
What are hydrocarbons? - answerMolecules composed of only the elements carbon and 
hydrogen 
What are the two major classes of hydrocarbons? - answerAromatic (benzene) and aliphatic 
(alkanes, alkenes, alkynes) 
What is the main source of hydrocarbons? - answerFossil fuels like coal, petroleum, and 
natural gas obtained by mining and drilling. 
What are Alkanes? - answerThey are saturated hydrocarbons because their skeleton is only 
c...
![Edexcel a level chemistry paper 3 mark scheme june 2023](/docpics/3990722/6573a5deab6ca_3990722_121_171.jpeg)
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Edexcel a level chemistry paper 3 mark scheme june 2023
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Mark Scheme (Results) 
Summer 2023 
Pearson Edexcel GCE 
In Chemistry (9CH0) 
Paper 03: General and Practical 
Principles in Chemistry 
Edexcel and BTEC Qualifications 
Edexcel and BTEC qualifications come from Pearson, the world’s leading learning 
company. We provide a wide range of qualifications including academic, 
vocational, occupational and specific programmes for employers. For further 
information visit our qualifications websites at or 
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Alternatively,...
![CHEM 103 Lab Exam 6 Questions With Answers Latest 2023/2024 (Portage Learning)](/docpics/3323453/64ebe7fae78ec_3323453_121_171.jpeg)
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CHEM 103 Lab Exam 6 Questions With Answers Latest 2023/2024 (Portage Learning)
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Bonds within a molecule are called intra-molecular bonds. 
Non-polar (type) compounds are insoluble in water. 
intra-molecular Correct! 
Non-polar Correct! 
Question 2 10 / 10 pts 
Fill in the blanks: 
Pentane is insoluble in water because it is a/an nonpolar (type) compound. 
Ethyl alcohol has a boiling point of 76.4 C and n-propyl chloride has a lower 
boiling point of 46.3 C because the Hydrogen bonds holding ethyl alcohol 
together are stronger than the nonpolar bonds which hold n-propyl chl...
![Chem 219: Module 2 Exam Questions With 100% Correct Answers](/docpics/4928850/660ff37ec0def_4928850_121_171.jpeg)
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Chem 219: Module 2 Exam Questions With 100% Correct Answers
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Chem 219: Module 2 Exam 
Questions With 100% Correct Answers 
What are hydrocarbons? - answerMolecules composed of only the elements carbon and 
hydrogen 
What are the two major classes of hydrocarbons? - answerAromatic (benzene) and aliphatic 
(alkanes, alkenes, alkynes) 
What is the main source of hydrocarbons? - answerFossil fuels like coal, petroleum, and 
natural gas obtained by mining and drilling. 
What are Alkanes? - answerThey are saturated hydrocarbons because their skeleton is only 
c...
![Biochemistry Final Exam - Portage Learning questions and answers graded+.](/docpics/3660882/65329a397a179_3660882_121_171.jpeg)
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Biochemistry Final Exam - Portage Learning questions and answers graded+.
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Biochemistry Final Exam - Portage Learning questions and answers graded+. 
 
 
 
 
 
 
 
 
True or False: According to the Module, a compound with a molecular mass of 1,000 g/mol is considered a macromolecule. - correct answers.False 
 
True or False: Biomolecules can have two or more different functional groups. - correct answers.True 
 
True or False: The following functional group is an amine. 
 
C2H5NH2 - correct answers.True 
 
True or False: In a eukaryotic cell, the organelles called per...
![Chem 103 Lab exam 6 Questions and Answers (100% Correct Elaborations) Portage Learning](/docpics/4507891/65cddae00df19_4507891_121_171.jpeg)
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Chem 103 Lab exam 6 Questions and Answers (100% Correct Elaborations) Portage Learning
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Chem 103 Lab exam 6 Questions and Answers (100% Correct Elaborations) Portage Learning
![Organic Chemistry 2223 latest update QUESTIONS AND CORRECT DETAILED ANSWERS WITH RATIONALES (VERIFIED ANSWERS) |ALREADY GRADED A+](/docpics/4946810/6613a17dad217_4946810_121_171.jpeg)
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Organic Chemistry 2223 latest update QUESTIONS AND CORRECT DETAILED ANSWERS WITH RATIONALES (VERIFIED ANSWERS) |ALREADY GRADED A+
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Organic Chemistry 2223 latest 
update QUESTIONS AND CORRECT 
DETAILED ANSWERS WITH 
RATIONALES (VERIFIED ANSWERS) 
|ALREADY GRADED A+ 
2 / 5 
1. Amine: 
3 / 5 
2. Alkyl halide: 
3. pentane: Name this. 
4. methane: Name this. 
5. butane: Name this. 
6. propane: Name this. 
7. ethane: Name this. 
8. hexane: Name this. 
9. heptane: Name this. 
10. octane: Name this. 
11. nonane: Name this. 
12. decane: Name this.
![CHEM 1332 Practice Exam 1 Questions & Answers Solved 100% Correct!!](/docpics/5115046/662bb7d88447a_5115046_121_171.jpeg)
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CHEM 1332 Practice Exam 1 Questions & Answers Solved 100% Correct!!
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What molality of pentane solution is obtained by dissolving 5.0 g pentane, C5H12, in 245.0 g hexane, 
C6H14? Enter your answer with two decimal places and no units. 
Molar mass pentane: 72.15 g/mol 
Molar mass hexane: 86.18 g/mol - 0.28 
5 g pentane x (1 mol/ 72 g)= 0.069 mol pentane 
245g > .245 kg hexane 
0.069 mol/ .245= 0.28 
If an aqueous CsCl solution is 7.28% CsCl (by mass) and has a density of 1.05 g/mL at 20.°C,what is the 
expected boiling point of the solution? Kb = 0.51°C/m for ...
![AAMC MCAT Practice Exam 2 Questions and Answers 2024](/docpics/4409752/65bddedfbfcc5_4409752_121_171.jpeg)
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AAMC MCAT Practice Exam 2 Questions and Answers 2024
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AAMC MCAT Practice Exam 2 Questions and Answers 2024 
C/P: What expression gives the amount of light energy (in J per photon) that is converted to 
other forms between the fluorescence excitation and emission events? 
"intensity of fluorescence emission at 440 nm excitation at 360 nm) was monitored for 20 
minutes" 
A) (6.62 × 10-34) × (3.0 × 108) 
B) (6.62 × 10-34) × (3.0 × 108) × (360 × 10-9) 
C) (6.62 × 10-34) × (3.0 × 108) × [1 / (360 × 10-9) - 1 / (440 × 10-9)] 
D) (6.62 × ...
![CHEM 121 Experiment 5: Bonding and Properties SPRING 2024 Portage learning](/docpics/5400577/664dea556a430_5400577_121_171.jpeg)
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CHEM 121 Experiment 5: Bonding and Properties SPRING 2024 Portage learning
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Title: Bonding and Properties 
Purpose: Study the infrared spectra and physical properties of molecules to determine what 
kinds of intra-molecular bonds are present within the molecules and what kinds of intermolecular bonds are present between the molecules. 
Procedure: 
1. Add potassium chloride (ionic) to water in a test tube. Shake tube so potassium chloride 
dissolves. 
2. Add pentate to test tube of water. Shake to see if it dissolves in the water. 
3. Add normal propyl chloride to test t...
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