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Questions and Answers
Which halogen is present in 2-chloropropane?
Which halogen is present in 2-chloropropane?
What is the primary functional group in 3-hydroxyheptane?
What is the primary functional group in 3-hydroxyheptane?
Which of the following accurately describes 1-bromobutane?
Which of the following accurately describes 1-bromobutane?
What type of compound is 2-fluoro-1-pentyne?
What type of compound is 2-fluoro-1-pentyne?
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Does ozonolysis of propyne yield acetic acid after reducing work-up?
Does ozonolysis of propyne yield acetic acid after reducing work-up?
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What percentage of the distilled solution is organic liquid?
What percentage of the distilled solution is organic liquid?
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What is the vapor pressure of water at $90^ heta C$?
What is the vapor pressure of water at $90^ heta C$?
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If the vapor pressure of water is $526 mmHg$, which of the following cannot be the molecular weight of the organic liquid?
If the vapor pressure of water is $526 mmHg$, which of the following cannot be the molecular weight of the organic liquid?
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What is the definition of a saturated solution?
What is the definition of a saturated solution?
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Which of the following statements is correct regarding the distilled solution?
Which of the following statements is correct regarding the distilled solution?
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Which factor is crucial in determining the molecular weight of the organic liquid in the distilled solution?
Which factor is crucial in determining the molecular weight of the organic liquid in the distilled solution?
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What does osmotic pressure refer to?
What does osmotic pressure refer to?
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Which of the following describes an ideal solution?
Which of the following describes an ideal solution?
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What is the boiling point of an immiscible organic liquid and water in the given scenario?
What is the boiling point of an immiscible organic liquid and water in the given scenario?
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What does the equation $Wt = MxVx \frac{MxVx}{100}$ represent?
What does the equation $Wt = MxVx \frac{MxVx}{100}$ represent?
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What type of isomerism is exhibited by 2-methyl-1-propanol and 2-methyl-2-propanol?
What type of isomerism is exhibited by 2-methyl-1-propanol and 2-methyl-2-propanol?
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Which statement is true regarding 2-methyl-1-propanol and 2-methyl-2-propanol?
Which statement is true regarding 2-methyl-1-propanol and 2-methyl-2-propanol?
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Which of the following best describes the structural difference between 2-methyl-1-propanol and 2-methyl-2-propanol?
Which of the following best describes the structural difference between 2-methyl-1-propanol and 2-methyl-2-propanol?
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Which property is likely to be different between 2-methyl-1-propanol and 2-methyl-2-propanol due to their isomeric forms?
Which property is likely to be different between 2-methyl-1-propanol and 2-methyl-2-propanol due to their isomeric forms?
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In organic chemistry, isomerization reactions typically involve changes in which of the following?
In organic chemistry, isomerization reactions typically involve changes in which of the following?
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What is the main factor contributing to the decrease in size from $Li₁₃$ to $Be₄$?
What is the main factor contributing to the decrease in size from $Li₁₃$ to $Be₄$?
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What can be inferred about the trend in atomic size as you move from $Li₁₃$ to $Be₄$?
What can be inferred about the trend in atomic size as you move from $Li₁₃$ to $Be₄$?
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Which reason explains why $K₁₉$ to $Ca₂₀$ shows a smaller size decrease compared to $Li₁₃$ to $Be₄$?
Which reason explains why $K₁₉$ to $Ca₂₀$ shows a smaller size decrease compared to $Li₁₃$ to $Be₄$?
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Which characteristic distinguishes $Li$ and $Be$ from $Na$ and $Mg$ in terms of size?
Which characteristic distinguishes $Li$ and $Be$ from $Na$ and $Mg$ in terms of size?
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What is the value of the principal quantum number in the configuration described as $n=5, l=3, m=0, s=1/2$?
What is the value of the principal quantum number in the configuration described as $n=5, l=3, m=0, s=1/2$?
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Which configuration correctly describes a state with $n=3, l=2, m=2, s=1/2$?
Which configuration correctly describes a state with $n=3, l=2, m=2, s=1/2$?
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How many unpaired electrons are present in the configuration $n=2, l=2, m=0, s=-1/2$?
How many unpaired electrons are present in the configuration $n=2, l=2, m=0, s=-1/2$?
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What term is used to describe the energy required to remove an electron from an atom or ion?
What term is used to describe the energy required to remove an electron from an atom or ion?
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Which of the following describes the term 'atomic size'?
Which of the following describes the term 'atomic size'?
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Study Notes
Chemistry Exam Study Notes
- Final Exam: General Chemistry I, Molecular Biology students (1st year)
- Date: 21 Dec 2022
Definitions
- Excluded volume: A concept in real gas equations, acknowledging that gas molecules occupy space.
- Effusion of gases: The process where gas molecules pass through a small opening.
- Mean free path: The average distance a gas molecule travels between collisions.
Real Gas Equation
- The real gas equation is (P + a/V²) (V − b) = RT
- Where:
- P = pressure
- V = volume
- a and b are constants specific to the gas
- R = ideal gas constant
- T = temperature
- Where:
Calculations
- Calculate the weight of NaOH needed to prepare 500ml of 2M NaOH solution:
- Atomic weights: Na = 23, H = 1, O = 16
- Formula weight of NaOH ≈ 40 g/mol
- Calculate using the formula: Wt = MxVX=
Solutions
- Saturated Solution: A solution in which no more solute can be dissolved at a given temperature and pressure.
- Osmotic Pressure: The pressure required to prevent the flow of solvent across a semipermeable membrane.
- Ideal Solution: A solution that obeys Raoult's law.
Organic Liquid and Water Mixture
- An immiscible organic liquid and water mixture boils at 90°C and 734 mmHg pressure.
- The solution is 73% organic liquid. Calculate the MW of the organic liquid given that the vapor pressure of water at 90°C is 526 mmHg.
Organic Chemistry Structures
- 2-chloropropane: Chemical structure needs to be drawn
- 1-bromobutane: Chemical structure needs to be drawn
- 3-hydroxyheptane: Chemical structure needs to be drawn
- 2-fluoro-1-pentyne: Chemical structure needs to be drawn
True/False Statements (Organic Chemistry)
- Ozonolysis of propyne: Followed by reduction gives acetic acid (True/False)
- Hybridization of propyne: SP, linear shape (True/False)
- Trans-2-butene stability: More stable than cis-2-butene (True/False)
- Alkene polarity: More than alkanes (True/False)
- n-butane/iso-butane isomerism: Chain isomerism (True/False)
- Pentane/2-methylbutane Boiling point: Pentane has a higher boiling point (True/False)
- Ozonolysis of 2-butene: Gives acetaldehyde (True/False)
- 2-methyl-1-propanol/2-methyl-2-propanol isomerization: Position isomerism (True/False)
Additional Topics (Part III)
- Bond angles in CH₄ and NH₃: Check correct answer options.
- Linear molecules: Identify which are linear
- Carbon atom hybridization in CO₂: Determine hybridization type
- Element classifications (Noble Gases, Representative, Transition Metals): Classify provided elements.
- Quantum numbers: Determine permissible and impermissible sets of quantum numbers.
- Ionization energy & Atomic size: Define and explain
- Electronic configuration of Ti²⁺: Answer correct configuration for Titanium ion.
- Orbital occupancies: Identify the correct orbital occupied by an electron given the quantum numbers.
- Atomic size variations in periodic table: Explain how atomic size changes across periods and down groups, and why.
- Size change between elements (e.g., Li₂ & Be₄): Explain why the decrease in size is greater in one case than the other.
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Description
Prepare for your General Chemistry I final exam with this comprehensive quiz. Covering key concepts such as excluded volume, effusion of gases, and the real gas equation, this quiz is perfect for first-year Molecular Biology students. Brush up on your calculations and definitions to excel in your exam.
