Consider the following melting point data: Compound NaCl MgCl2 AlCl3 SiCl PCl3 SCl2 Cl2 mp(°C) 801 708 190 −70 −91 −78 −101 Compound NaF MgF2 AlF3 SiF4 PF5 SF6 F2 mp(°C) 997 1396 1040 −90 −94 −56 −220 Account for the trends in melting points in terms of interparticle forces.

Q: Calculate the change of melting point of naphthalene per atmospheric change of pressure, given…

A:

Q: Identify the type of intermolecular attraction(dipole-dipole, hydrogen bonding, ion-dipole, and…

A: Dipole-Dipole intermolecular forces involve oppositely charged end interaction of dipoles. This type…

Q: Find the approximate melting point for this substance XY at 20 atm

A: A triple point is the point in a phase diagram where the solid, liquid and gas is at equilibrium. A…

Q: Identify what type of solids are the following compounds. 1. Li2SO4 2. MgBr2

A: Li2SO4 is lithium sulfate which is an inorganic compound. It is a white color lithium salt of…

Q: A liquid rises to a height of 1.50 cm in a capillary tube. What is the radius of the tube if the…

A: The liquid rises and falls in a capillary tube due to the forces of adhesion and cohesion. The…

Q: A student synthesized a new compound with molecular formula C6H3Br2NO₂ which displayed two singlets…

A: Solution 1:The molecular formula of compound 1HNMR spectrum has two peaks with intensity ratio 2 and…

Q: TRUE OR FALSE 1. Liquids have short range order arrangement. 2. Solids both have long, and…

A:

Q: What kind of intermolecular forces act between a dichloroethylene (CH, CC1,) molecule and a nitrosyl…

A: Given compounds  Dichloroethane Nitrosyl chloride

Q: How does pressure and crystallinity affect density of a material?

A: In this question, we have to find out the correct answer of given problem by the help of the…

Q: P (atm) 1.5 1.0 0.5+ 0 -10 0 P= W P= CHM 111 نا P= 10 20 y 30 40 50 60-70 T (°C) a. At what…

A: In this question, we need to identify the normal boiling point, critical point and triple point from…

Q: Dry ice, CO2(s), does not melt at atmospheric pressure. It sublimes at a temperature of −78 °C. What…

A: The phase diagram of CO2 is as follows,

Q: Arrange the following compounds in the increasing order of their surface tension. Explain your…

A: The magnitude of surface tension depends on the attractive forces between the molecules. Normally…

Q: Sketch the phase diagram of the NH3/N2H4 given that these two compounds do not react with each…

A: eutectic melting point is the the point on the phase diagram where both species melts.

Q: Answer the following questions dealing with intermolecular forces and the physical properties that…

A: There are three main types on intermolecular forces present 1. London dispersion forces : present in…

Q: %. Hatoms 6.949 + 2159 X 26. A solution of 4.00 g of a nonelectrolyte dissolved in 55.0 g of benzene…

A:

Q: what about the molar energies of attraction associated with dipole- induced dipole interaction using…

A: The dipole is formed by the electronegativity differences between the two atoms. HCl is a polar…

Q: D 1.5 P (atm) 1.0 A 0.5+ B -10 0 10 20 30 40 50 60 70 T (°C)

A: Applying concept of phase diagram to determine triple point and equilibrium graph.

Q: Homework 4. Phases and phase changes. Due Friday, July 15th by email. 1. Reading phase diagrams. •…

A:

Q: Question 5. Below is a phase diagram of water. Please answer the following questions: a) What is the…

A: Answer

Q: The vapour pressure of a pure substance at various temperatures is presented below. T (°C)     Pvap…

A: The data given is, T (°C)     Pvap (mmHg) 0.0 15.0 15.0 38.4 25.0 68.2…

Q: list in increasing order intermolecular forces CH4, H20, OF2, HF2, C3H8, CH3NH2,

A: Applying concept of intermolecular interaction between molecules.

Q: A metal atom that has an atomic weight of 69.892 amu crystallizes in a face-centered cubic lattice…

A:

Q: he NaCl crystal structure consists of alternating Na⁺ and Cl⁻ ions lying next to each other in…

A: Atomic radius: Distance between nucleus and last shell electron of an atom is an atomic radius. It…

Q: What phase will it exist in room temperature

A: Room temperature = 25 0C Room temperature in Kelvin = 25 + 273.15…

Q: Chromium metal crystallizes as a body-centered cubic lattice. If the atomic radius of Cr is 1.25 ×…

A: r = 1.25*10-8 cmNo. of atoms in bcc = 2Atomic weight of Cr = 51.99 g/moldensity = ?

Q: Which of the following represent closest packing of spheres? 11 III IV O II + IV OI + IV III+IV | +…

A:

Q: caps lock Rsimi, Nour 00 3 of 5 > 1 2 3 4 5 2023VVA Chemistry.7b.FA1 An investigation was conducted…

A: The heating curve represents the solid, liquid and gaseous state of the given compound. First…

Q: A student tests a crystalline product's melting point twice. In one test, a capillary tube with a…

A: A question based on physical chemistry, which is to be accomplished.

Q: At which point in the phase diagram below are solid and liquid phases in equilibrium? Phase Diagram…

A: Find out which  point solid  and liquid  phase at  eualibrium.

Q: What are the meaning of Ion-dipole, Dipole-dipole, London dispersion forces, and Hydrogen bonding?…

A: Inter-molecular interactions are attractive or repulsive interactions among different molecules.…

Q: The normal boiling point of this substance Temperature at critical point Temperature at triple point

A: The phase diagram given is,

Q: pressure 4 x x 10 3 x k 5 x 6 2 x 8 x 9 temperature

A: In the given phase diagram, T represents the triple point and C represents the critical point Other…

Q: 1)What will happen to a sample of XY if you start at (12 atm, 200 °C) and increase the pressure at…

A: The point in the phase diagram where soli, liquid and gas exist in equilibrium. The phase diagram is…

Q: what is meant by the term polarizability?

A: Polarization means separation of charges. So, as the name suggests, the polarizability is the…

Q: Which intermolecular force correlates with polarizability?

A: Polarizability generally refers to the tendency of matter, when exposed to an electrical field, to…

Q: Consider the following melting point data:   Account for the trends in melting points in terms of…

A: The given table is, The melting point trend on the basis of interparticle forces has to be…

Q: At its melting point (624°C), the density of solid plutonium is 16.24 g cm-3. The density of liquid…

A: The density is inversely proportional to the volume and directly proportional to the mass. Since the…

Q: hich has the least viscosity? O CH3CH20H HOCH2CHOHCH2OH CH3(CH2)3CH3 O CH3(CH2)4CH3 hich has the…

A: Since you have posted multiple questions as per the guidelines we can answer only one per session .…

Q: What is/are the effect(s) of impurities on the boiling point of a compound?

A:

Q: What is the significance of the triple point in a phase diagram?

A: All matter can be classified as solid, liquid and gases mainly. In these physical states of matter,…

Q: What type of intramolecular force/s are present in this molecule? CO2 2. What type of…

A:

Q: Deslattes et al. found the following values for a single crystal of very pure silicon at 25 °C: p =…

A: given, density (ρ) = 2.328992 gcm-3 edge length (a) = 543.1066 pm = 543.1066×10-10 cm atomic mass…

Crystal Structures

Solids are present all around us. They have different properties and applications. Diamond and graphite are two well-known solids. Diamond is the hardest material in the world and is used in making jewelry. Graphite on the other hand is soft. The lead of your pencil is graphite. Why are they so different in appearance and properties despite the fact they are chemically the same? Both are allotropes of carbon. The answer lies in the structure, the way constituent particles are arranged in the solids.