calculate the ionic attractive energy between K and O ions per mol of the material.

Q: Suppose you shade a square of side 1.0 cm with a pencil that leaves a layer of graphite 315 nm…

A: The square of side 1.0 cm is shaded with pencil. The thickness of graphite layer is 315 nm.

Q: Why is the average molar mass of a polymer sample dif-ferent from the molar mass of an individual…

A:

Q: The molar volume is a certain form of solid lead is 18 cm3/mol. Assuming cubic closest packet…

A: 1. As we know that, the unit cells of cubic closed packed structure consist four atoms. So, the…

Q: True or False The relative strength of the IMFs in a solid are strong compared to the kinetic…

A:

Q: Determine the number of vacancies needed for a BCC iron crystal to have a density of 7.87 g/cm³. The…

A:

Q: viscosity

A: In this question we have to explain the relate viscosity to strength of IMFs among liquid molecules.

Q: Define these properties and explain the relationship of IMF strength to each property. (a) Boiling…

A: (a) Boiling point Boiling point is the point where a matter changes its state from liquid to gas.…

Q: The difference between sublimation and crystallization in terms of purity is the quantity of the…

A: The process that involves the conversion of liquid into solid is known as crystallization. The…

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: The ionic radii of the Mg21 and 022 ions are 0.86 Å and 1.26 Å, respectively. Given that the…

A:

Q: Does sodium hydroxide have higher conductivity or ammonia?

A:

Q: How do you explain the statement: copper can contain up to 40% Zn and still be single phase?

A:

Q: he packing efficiency (in

A:

Q: Briefly explain the difference between particle and crystal size

A: One of the four basic states of matter is solid. A solid's molecules are densely packed together and…

Q: is the study of fundamental principles of nanostructures between bulk and atomic properties.

A: Nanoscience: The study of fundamental principles of nanostructures between bulk and atomic…

Q: Give three (3) applications of surface tension in food and packaging industry.

A: Applications of surface tension characterization in the field of food materials science are…

Q: Consider spherical nanoparticles of  copper with diameter of 10nm and 100nm A) Calculate the total…

A:

Q: What is packing fraction ?

A: A way of expressing the variation of isotopic mass from whole mass number (atomic mass) is defined…

Q: Explain how the intensive properties of a material are reflected in the unit cell. Are all the…

A:

Q: Can you draw a graph of molar conductivity using the data?

A: According to Debye-Huckel-Onsager theory the molar conductivity is related to the concentration for…

Q: The magnitude of the electric force between two particles depends on which factors?

A: For the electric force between two stationary charged paricle, Coulomb formulate an equation which…

Q: Write the different types of alloys?

A:

Q: Q/ Briefly explain how these factors affect wettability 1-the pore size 2- the surface roughness…

A: Wettability: it is an ability of a liquid to stay in contact with a solid surface.

Q: QI. Calculate the linear density of directions [011] for BCC, and FCC crystal structures?

A: Body centred cubic close packing is represented as BCC whereas face centred cubic close packing is…

Q: H20 N Oven H&0,N2 90°C latm 130°C 9.6atn

A:

Q: The inorganic part of bone is made of CaF2, or fluorite. For CaF2, the unit cell is cubic, and the…

A: CaF2 has fcc lattice, hence Z=4 Given, At. mass Ca = 40.08 g/mole At. mass F = 19.00 g/mole…

Q: The experimentally determined density of a material is lower than expected based on the arrangement…

A: H-bonding involves dipole-dipole interactions. It is formed between a H-atom and a highly…

Q: What is the advantage of using superficially porous particles?

A: Superficially porous particles are those particles made from non porous core and porous shell…

Q: An ionic solid, MX, has the ionic radius ratio, r,/r., of more than 0.414 but less than 0.732.…

A:

Q: Calculate the number-average molar mass and the weight-average molar mass of a mixture of two…

A: Polymers are the large molecules that are composed of small repeating units known as monomers.

Q: 3. Explain how trace levels of CaCl, impurity in an NaCl crystal would affect the seil-diffusion…

A: Crystal lattices are regular, repetitive arrangements of ions or groups in space. It is the smallest…

Q: What is the meaning of magnetic susceptibility, orbital motion, ferromagnetism and…

A:

Q: A sample of lead glass is prepared by melting together 20.0g silica , SiO2 and 80.0g of lead (II)…

A:

Q: In which direction along the periodic table does thermal conductivity generally increase?

A: Thermal conductivity does not show regular increase or decrease in periodic table.In every group and…

Q: What is equivalent conductivity?

A: Definition:When dissolving one gram equivalent of an electrolyte, will generate the conducting power…

Q: Draw the isotactic, syndiotactic, and atactic form of polypropylene.

A: characterstics of these three polymers are as follows : Isotactic polypropylene is strong and hard…

Q: Estimate the density of calcium oxide (rock salt structure), knowing that the ion rays are 100 pm…

A: Radius of Ca2+ = 100 pm Radius of O2- = 140 pm CaO has rock salt structure, i.e. Z =4 Calculation of…

Q: Calculate the height in meters of a column of liquid glycerol (d = 1.26 g/cm3) required to exert the…

A: Pressure will remain same then we can write dHg×g×hHg = dalc×g×halc Where dHg = density of mercury g…

Q: 4. Sodium crystallizes in the body-centered cubic structure with a=0.424 nm. Calculate the…

A: For Sodium:- m = 23g/mol     = 0.023kg/mol Na = 6.022 x 1023 a = 0.424nm = 4.24 x 10-10m

Q: What is the effect of temperature on molar conductivity?

A: The effect of temperature on molar conductivity has to be given,

Q: 6 A sample of lead glass is prepared by melting together 20.0g silica , SiO2 and 80.0g of lead (II)…

A: we are required to find the mole fraction of silica in the glass which is prepared by mixing 20 g of…

Q: Explain how these vacancies allow oxide ions to move through the material.

A: The oxide ions move through the material is as follows.