Q: Advantages and disadvantages relationship of conductance and conductivity.
A: Conductance It is defined as the reciprocal of resistance of a conductor or the ability of any…
Q: The polypropylene (repeat unit CH3CHCH2) in a plastic object has a molar mass of 2.8x10^5 g/mol and…
A: Calculate the degree of polymerization: n=Molecular weight of polymerMolecular weight of…
Q: Which of the ff. wavelengths may be used for turbidity measurements? 860 nm 500 nm 370 nm 240 nm
A: The wavelength applied in the turbidity measurement are usually in the near infrared range (700nm-…
Q: 2.5 Polymer/Filler Interface and Mechanical Properties Talk in general about the influence of…
A: A series of composites that may be based on the low and high density polyethylene matrices with…
Q: 3. An fcc structured crystal, which area has the most Miller index of atoms per unit area?.…
A:
Q: Proposed a laboratory procedures on how to determine polymer molecular weight based on osmotic…
A:
Q: List 3 methods of sampling used in surface characterization techniques?
A: The surface characterization technique is an important means to quantify surfaces under…
Q: see the graph and determine/give the ff: a. 1 eutectic point (temp and composition) b. 1…
A: Solutions- The given graph is phase diagram of Mg2SiO4 compound.
Q: Which is not correct for scattering Depend on medium particle size None Scattering polarizes the…
A: Scattering is a phenomenon in which energy waves moves in a straight path and get distributed in…
Q: An Ostwald viscometer was used to determine the time of flow of dishwashing soap at 20 °C. Data for…
A:
Q: Outline the effect of drawing to the mechanical behaviour of polymer: I. Decrease elastic modulus…
A: Please find your solution below : The drawing process affects the mechanical behaviour of polymer.…
Q: The molecule with the smallest HOMO-LUM0 gap:
A:
Q: 6. why is the segmental mobility of a polymer reduced by the presence of the filter?
A: We have to tell the reason of the decrease of the segmental mobility of the polymer in the presence…
Q: The surface tension of water at 20°C is 72.7 mN m and its density is 0.998 g cm³. Assuming a contact…
A: This problem utilises the concept of balancing of downward pressure force with the suface tension…
Q: When the D line of sodium light impinges an air-diamond interface at an angle of incidence of 25.0°,…
A: The solution is given below -
Q: What point defects are possible for Al2O3 as an impurity in MgO? How many Al3+ ions must be added to…
A:
Q: Verify that the lowest value of the radius ratio for (a) sixfold coordination is 0.414, and (b) for…
A: (a)
Q: Properties of ABE Materials 1.) prediction methods in determining density
A: DETERMINING DENSITY density is mass per unit volume. If D is density of body e of mass M and volume…
Q: 9- It flows (10 cm') of olive oil during a capillary tube (2 cm in length and (0.04 mm in diameter)…
A: Given, Volume = 10 cm3 Capillary length = 2 cm Diameter = 0.04 mm Height of the olive oil in…
Q: a- Determine the Structure Factor of FCC lattice for all even or all odd Miller indices? b- and what…
A:
Q: What is scattering coefficient?
A: The moving particles like a light when forced to divert from a straight trajectory through some…
Q: spherical nodes planar nodes 1s 1 0 2s 1 3s 3 2p. 1 3px 3 1 1 1 3d, What is the relationship between…
A: Total number of nodes = (n -1)
Q: how the liquid junction potential can be eliminated ?
A: When two different concentrations of electrolyte solution come in contact forms liquid junction…
Q: A crosslinked copolymer consists of 59 wt% ethylene (C2H4) repeat units and 41 wt% propylene (C3H6)…
A: Since the weight % is given and we need mole % to find the fraction. Assuming we have 100 gm of…
Q: The polypropylene (repeat unit CH₃CHCH₂) in a plastic toy has a molar mass of 2.8X10⁵ g/mol and a…
A: Here poly propylene is a polymer having propene as a monomers. The monomeric unit added itself to n…
Q: How is electrolytic conductance measured experimentally?
A: Given term, Electrolytic conductance
Q: What is dispersion statistics? Why is it important?
A: Answer - According to the question - Dispersion is a statistical term that describes the size of the…
Q: In a surfactant molecule the active head surface area was 70 (secured angstroms) whereas it is…
A: Calculation of critical packing parameter: CPP=Vao×lc ...... (1)…
Q: Describe the differences between a nanopowder image characterized by scanning electron microscopy…
A: Answer - According to the question - Given - All light microscopes today are compound microscopes,…
Q: Calculate the approximate length of a PVA strand in centimeters, assuming that each monomer unit…
A: The O-C-C bond point in PVA chain is three-sided plannar, bringing about a bond point of 120°.…
Q: What happen to the separation raid (RS) I change the mobile phase from methanol/water 70/30 till…
A: Answer - Thin Layer Chromatography. Thin-layer chromatography (TLC) is a very commonly used…
Q: The contact angle for water on glass is close to zero. Calculate the surface tension of water at 25…
A:
Q: Discuss the importance of bulk vs. surface properties of biomaterials. Briefly describe the…
A:
Q: Q4: Choose the adequate answer: Open One linearly circuit electr The simplest of all atoms is the…
A: Resistivity is resistance of a conductor per unit length per unit area. Conductance is reciprocal…
Q: 12. What is the expected limiting molar conductivity (mS m² mol¹) for Ca(NO3)2? a) 25.012 b) 25.662…
A:
Q: t 25∘C, how high will water rise in a glass capillary tube with an inner diameter of 0.75 mm? For…
A: Rise in the tube , h = 2TCosθρrg θ = 0o contact angle will be zero since the water has to rise…
Q: The following data apply to a 1g sample of a granular powder Volume of the solid alone = 1 cm3/2g…
A:
Q: Q1: What are the differences between 1.Nano filled composite2. Condensable composite, 3.Flow able…
A: Nano-filled Composite Condensable Composite Flow-able composite Hybrid Composite Resins Mechanical…
Q: What is Macromolecular hypothesis, what is contribution of Staudinger, Carothers, and Paul
A:
Q: Discuss the fracture mechanis of the polymer
A: A simple fracture is the separation of a body into two or more pieces in response to applied stress.
Q: Determine the structure factor for the basis of the diamond. (a) S. =1+e 4+*+) basis (b) Szasis…
A:
Q: Sketch the Miller plane in a unit cell (0-1-3)
A: The miller indices can be evaluate through the reciprocal of unit cell.
Q: The polarizability volume of H2O at optical frequencies is 1.5 × 10−24 cm3. Estimate the refractive…
A:
Step by step
Solved in 2 steps with 1 images
- 5. Explain the determination of molecular weight of polymer samples usingdilute viscosity measurement.When using a multimeter as a conductivity meter, what are the units used?Poisson’s ratio for polyethene is 0.45. What change in volume takes place when a cube of polyethene of volume 1.0 cm3 is subjected to a uniaxial stress that produces a strain of 1.0 per cent?
- Assuming that the density of silica gel is 2.65 g cm-3 and that the silica particle are spherical with an average radius of 5 x 10-6 cm, calculate the estimated surface area Sest. Why is there such a large difference between S and Sest?What are the main advantages and limitations of the Valencia Linkage Theory?The polypropylene (repeat unit CH₃CHCH₂) in a plastic toy has a molar mass of 2.8X10⁵ g/mol and a repeat unit length of 0.252 pm. Calculate the radius of gyration.