a. what is the difference between an intermolecular and intramolecular force?\nb. imfs: list the 3…

a. what is the difference between an intermolecular and intramolecular force?\nb. imfs: list the 3 intermolecular and the 2 intramolecular forces from weakest to strongest (there should be 5 in total on 1 spectrum):\nc. a covalent molecule with a vapor pressure higher than water is expected to have a boiling point above or below 100°c?\nd. polar (sticky)=______=______\nnonpolar (not sticky) = ______=______\nfill in the 4 blanks above, here’s a word bank (not in any order): asymmetrical, gas, symmetrical, liquid\ne. without using google, arrange these 4 compounds from lowest to highest boiling points. hint: assess their polarities and then their masses. explain your decisions:\nethanol c₂h₅oh (a)\nethane c₂h₆ (b)\nbutane c₄h₁₀ (c)\nacetone ch₃coch₃ (d)\nf. arrange them in order of lowest to highest vapor pressure. how does this order compare to your response in #5 above?
Answer
Explanation:
Step1: Define intermolecular and intramolecular forces
Intermolecular forces are between molecules, like London - dispersion, dipole - dipole, and hydrogen bonding. Intramolecular forces are within a molecule, such as covalent and ionic bonds.
Step2: List forces from weakest to strongest
Weakest to strongest: London - dispersion (intermolecular), dipole - dipole (intermolecular), hydrogen bonding (intermolecular), covalent (intramolecular), ionic (intramolecular).
Step3: Relate vapor pressure and boiling point
Higher vapor pressure means lower boiling point. So a covalent molecule with higher vapor pressure than water has a boiling point below 100°C.
Step4: Fill in blanks
Polar (sticky) = asymmetrical = liquid. Non - polar (not sticky) = symmetrical = gas.
Step5: Arrange boiling points
Ethane (B) has only London - dispersion forces and is smallest. Butane (C) is larger than ethane, also with only London - dispersion forces. Acetone (D) is polar, so has dipole - dipole forces. Ethanol (A) has hydrogen bonding. So order is B < C < D < A.
Step6: Arrange vapor pressures
Vapor pressure is opposite of boiling point. So order is A < D < C < B. The order of vapor pressure is the reverse of the boiling - point order.
Answer:
a. Intermolecular forces are between molecules; intramolecular forces are within a molecule. b. London - dispersion, dipole - dipole, hydrogen bonding, covalent, ionic. c. Below 100°C. d. Polar (sticky)=asymmetrical=liquid; Non - polar (not sticky)=symmetrical=gas. e. B. Ethane < C. Butane < D. Acetone < A. Ethanol. f. A. Ethanol < D. Acetone < C. Butane < B. Ethane. The order of vapor pressure is the reverse of the boiling - point order.