Which of these substances will dissolve in hexane, a non-polar substance? HINT: You will need to determine lines of symmetry and polarity for each molecule. O a Ci-c- Cl: :CI: s=c=s° S=C=S H H H-C-C-H H H

Q: Consider the compounds dimethylether (CH3OCH3), ethanol (CH3CH2OH), and propane (CH3CH2CH3). Their…

A: Intermolecular forces are the attractions between the molecules.

Q: Two isomers of C2H2F2 are shown. Circle the one that you would you expect to have the highest…

A: Given isomers:

Q: On the basis of dipole moments and/or hydrogen bonding, explain in a qualitative way the differences…

A:

Q: Why is it not advisable to freeze a sealed glass bottle that is completely filled with water? Use…

A: On decreasing temperature volume is going to be decreased. The same thing happens in the freezer…

Q: Acetone is soluble in water and its solubility does not change much with a change in temperature.…

A: PEC diagram is the graph of potential energy at Y-axis versus number of configurations at x-axis.…

Q: 7) Organize the following solvents in order of increasing polarity: -OH 4.

A: The data i have mentioned is based on Reich polarity

Q: Substance Melting Point (C) castor oil -9.8 phenol 43.2 benzene 5.7 formic acid 8. Which substance…

A: Melting point of organic compounds mainly depends upon the force of attraction among them . Stronger…

Q: 3. What do you notice about the compounds under the melting point çolumn that have negative values?

A: Ionic bond is more strong. So, more heat required to boil or melt. Where as covalent bond are not…

Q: Explain the observed trend in the melting points for four isomers of molecular formula C,H16. mp…

A: The ability of the molecule to pack more tightly increases the melting point. The melting point of…

Q: Highest boiling point Nh3 co2 ch4 h2 o2

A: Answer: H2O2  (hydrogen peroxide)  Explanation:  Boiling point depends on intermolecular force of…

Q: Substance X has a normal melting point of 123°C. Predict the values (>, =, X(l) at 123°C. Be sure…

A: Change in entropy is defined as a measurement of randomness or disorder. It is denoted by ∆S. Delta…

Q: Fluorine (f2) has melting point of 53.53k and a boiling point of 85.03k draw whar fluorine would…

A: The temperature of a system at which the phase change from solid to liquid occurs is known as the…

Q: Analyze the given problem and show your complete and detailed solution.  The radius of the oxygen…

A:

Q: Substance X has a normal melting point of 123°C. Predict the values (>, =, X(l) at 100°C. Be sure…

A: The reaction taking place is given as, => X (s) -----> X (l) Given : Melting point of solid X…

Q: Arrange the following based on increasing order of volatility: (1) CH3COOCH3 (II) CH3CH2COOCH3 (III)…

A: The given compounds are: (1) CH3COOCH3 (II) CH3CH2COOCH3 (Ill) CH3CH2CH2COOCH3  To arrange on the…

Q: Calculate the AS°fus of cyclohexane given its AH°fus = 2.68 kJ/mol %3D Freezing point of…

A: Entropy of fusion is the increase in entropy when we melt a substance.

Q: Identify the major intermolecular force in the following molecule: :F: :F- PF -F:

A: To find: The major intermolecular force in PF3.

Q: Suppose a chloride ion and a sodium ion are separated by a center–center distance of 5 Å. Is the…

A: 1) The value of the dielectric constant of the solvents represents how well the solvent molecules…

Q: Using the concept of IMFA, account for the difference in boiling point and melting point of the…

A: According to Intermolecular force of attraction (IMFA), the increase in melting and boiling points…

Q: What weight of NaCl in 800g acetone is needed to bring boiling point to 60°C? (Boiling point of pure…

A: Mass of acetone = 800 g  Boiling point of pure acetone = 55.95°C  Boiling point of solution = 60°C…

Q: Will water inside a sealed spherical glass boil (see bubble

A: When water is in inside a spherical sealed glass ,  And temperature of glass is raised for trying to…

Q: A В Ether Water- Which set up represent KD > 1 KD = 1 KD < 1

A: If the solute is more soluble in organic layer then KD&gt;1  If the solute is more soluble in…

Q: c- Rearrange the following compounds according to increases the melting point NaCI, NaF, Nal, NaBr…

A:

Q: Using the following data, estimate AHF° (in kJ/mol) for potassium chloride: K(s) + ½ Cl2(g) →…

A: Given values: Lattice energy of KCl = -690 kJ/mol Ionization energy of K = 419 kJ/mol Electron…

Q: It would be expected that the nonpolar compound naphthalene would be most soluble in which solvent?…

A: Since Nepthalene is non polar compound having zero dipole moment . Complete solution is given below…

Q: Propyl alcohol (CH3CH2CH2OH) and isopropyl alcohol[(CH3)2CHOH], whose space-filling models are…

A: Since the propyl alcohol has straight chain while in isopropyl alcohol we have alcohol group at…

Q: Carbon tetrachloride was a common nonpolar solvent that is now being phased out due to carcinogenic…

A: Given: The heat added is 7.40 J. The initial volume of carbon tetrachloride is 39 mL. Initial…

Q: the data in the table. Compound Melting point ("C) AH (kJ/mol) Boiling point (C) AH,ap (kJ/mol) HF…

A:

Q: Substance X has a normal melting point of 123°C. Predict the values (>, =, < 0) of Delta H, Delta…

A: X has a normal melting point of 123°C.   Hence ∆G at 100 0C is , ∆G &gt; 0 as at 100 0C melting is…

Q: 4 Consider two conformations A and B of a molecule with 6.0 kJ/mol energy difference. Calculate the…

A: Solution - Boltzmann distribution - Boltzmann distribution is a probability distribution or…

Q: Propyl alcohol 1CH3CH2CH2OH2 and isopropyl alcohol31CH322CHOH4, whose space-filling models are…

A: Both propyl alcohol and isopropyl alcohol have same mass, same intermolecular force and same…

Q: The melting point of H2O(s) is 0 °C. Would you expect the melting point of H2S(s) to be greater or…

A: Intermolecular forces are the attractive force that withholds two molecules and the influence of…

Q: All of the following alcohols have the same molecular formula (C5H120), but they have significantly…

A: Boiling point is the temperature  at which the pressure exerted by the surroundings upon a liquid is…

Q: Consider the data in the table. Compound Melting point (°C) AHfus (kJ/mol) Boiling point (°C) AH,p…

A: When a compound experiences a change of state, the Gibbs free energy becomes zero and entropy is…

Q: What force(s) is(are) responsible for the higher heat of vaporization of acetone compared to…

A: Heat of vaporization is how much energy is needed to separate the bonds in a molecule.

Q: 3. Arrange the following substances in the order of increasing boiling points. a. Ethanol b. Ethane…

A: As we know that , The boiling point of alcohols is much higher than the boiling point of alkanes.…

Q: Which of the following compounds is most polarizable? (A) (B) (C) (D) Compound A Compound B Compound…

A:

Q: -3 -200 -100 100 Temperature ("C) t melts at -170 o, and valorizes at -1200 t melts at-180 o, and…

A: According to the question, we have the phase diagram of methane.  The critical point is at the point…

Q: Ethane (CH3CH3) has a melting point of −183 °C and a boiling point of −89 °C. Predict the melting…

A: Boiling point and melting point of a substance depends upon the intermolecular force of…

Q: Which substance, A or B, has the lower polarizability? A= CH3CH2CH3 B= CH3CH3

A: More the polarizability, stronger will be the intermolecular forces.

Q: f the following has the largest dispersion fa B) C3H8 C) C6H14 D) C10H2

A: According to the question, we need to determine which of the following molecule will have the…

Q: الإنجليزية Q 3/ Rank the following elements in terms of the strength of the polar correlation from…

A: NOTE: please note according to our policies , we can only answer one question at one time. you have…

Q: H2C=CH2  +     H2   →    CH3CH3 reaction occurs more easily in metal catalysis. Explain the reason…

A:

Q: Rank molecules A-D in order from lowest to highest boiling point. Briefly rationalize your choice.…

A:

Q: What is the ΔHfus of ethanol (46.06 g/mol) which has Kb of 1.99 and freezes at -117.3 °C?     3.72…

A: Answer: Relation enthalpy of fusion and Molal depression constant is shown below: ∆Hf=MRTf21000Kf…

Q: Which compound below has the highest boiling poi CH3 CH3CCH2CH2CH,OH CH3 CH;CH, O-CH;CH3 H3C CH3 HHH…

A: More the intermolecular forces of attraction more energy will require to break thease forces.

Q: Intermolecular forces play important role in maintaining 3-dimensional structure of proteins in…

A: Proteins can be easily classified on the basis of their structures such as…

Q: Int molecular forces of attraction are often important in holding large molecules together. For…

A: At site B , oxygen of C=O is forming attractive bond with Hydrogen of N-H

Q: Cyclohexane freezes at 6.50 °C. What is its ΔS° of freezing if its ΔH° of fusion is 2.68 kJ/mol?…

A: Given: ΔH° of fusion is 2.68 kJ/mol Freezing point is 6.50 °C.

Quantum Chemistry

Quantum chemistry deals with the properties of chemical systems and their reactions. The branch of chemistry which is more concerned with quantum chemistry is physical chemistry. It is a more sophisticated field of theoretical physics which is concerned towards the application of physical concepts towards various chemical aspects such as, formation of atoms, chemical structure descriptions, chemical bond strength, hybridization, conjugation etc. Quantum chemistry mainly studies the various states i.e., ground state, excited state, transition states of the individual atoms or molecules taking place during any chemical reaction. The laws of motion explained by various scientists, which are termed as “classical mechanics” were not acceptable in terms of electrons, protons, atoms, light etc. Thus, a new theory named “quantum mechanics” emerged to understand the basic framework of various atomic and subatomic particles.