For a powder binding process that mixes a 3:1 volume ratio mixture of semi-crystalline polyethylene powder with a density of 0.900 g/cm³ and crystalline polyethylene powder, what is the percent crystallinity of the manufactured parts? (The density of polyethylene in its amorphous and crystalline states is 0.870 g/cm³ and 0.998 g/cm³ respectively) a. % Crystallinity = 55.25% % Crystallinity = 35.50% b. % Crystallinity = 45.96% O d. % Crystallinity = 61.20% e. % Crystallinity = 53.35% C.

For a powder binding process that mixes a 3:1 volume ratio mixture of semi-crystalline polyethylene powder with a density of 0.900 g/cm³ and crystalline polyethylene powder, what is the percent crystallinity of the manufactured parts? (The density of polyethylene in its amorphous and crystalline states is 0.870 g/cm³ and 0.998 g/cm³ respectively) a. % Crystallinity = 55.25% % Crystallinity = 35.50% b. % Crystallinity = 45.96% O d. % Crystallinity = 61.20% e. % Crystallinity = 53.35% C.

Chemistry: An Atoms First Approach

2nd Edition

ISBN:9781305079243

Author:Steven S. Zumdahl, Susan A. Zumdahl

Publisher:Steven S. Zumdahl, Susan A. Zumdahl

Chapter9: Liquids And Solids

Section: Chapter Questions

Problem 2ALQ

See similar textbooks

Similar questions

Cloth can be waterproofed by coating it with a silicone layer. This is done by exposing the cloth to (CH3)2SiCl2 vapor. The silicon compound reacts with OH groups on the doth to form a waterproofing film (density = 1.0 g/cm3) of [(CH3)2SiO]n, where n is a large integer number. n (CH3)2SiCl2 + 2n OH 2n Cl + n H2O + [(CH3)2SiO]n The coating is added layer by layer, with each layer of [(CH3)2SiO]n being 0.60 nm thick. Suppose you want to waterproof a piece of doth that is 3.00 square meters, and you want 250 layers of waterproofing compound on the cloth. What mass of (CH3)2SiCl2 do you need?
10a. Why each polymer gives a different melting temperature, Tm?
( 82 ll 6 o 1::1A Q1/ choose the right answer for 0 of 0 the following points Monomers ------ to be Polymers * Polymorphism polymerization allotropy tempering قسم بلا عنوان O of 0 points material is not ceramic material. * Aluminium oxide graphite НА none >
Recently a team from Clarkson University discovered a porous solid called NU-1000, constructed from Zr, C, O, and H, excels at removing poly- and perfluoroalkyl species (aka PFAS) from water. The density of this material is 0.486 g/cm³ and its surface area is 2255 m²/g. If 50.0 g of this material is placed in water, calculate the total area (in cm²) of this sample. DONT GIVE ANY TYPE OF IMAGE IN ANSWER OTHERWISE I WILL GIVE INCORRECT ANSWER DON'T GIVE HANDWRITTEN SOLUTION
Use the following atomic masses (in g/mol):Mg = 24.31; O = 16; Ca = 40.08; C = 12.01; Na = 23; H = 1; N = 14.01; S = 32.06; Cl = 35.45; 2.) Limestone consists chiefly of mineral calcite (CaCO3). The carbonate content of 0.5413g of powdered limestone was measured by suspending the powder in water, adding 10mL of 1.392M HCl and heating to dissolve the solid and expel CO2. The excess acid required 39.96mL of 0.1004M NaOH for complete titration to a phenolphthalein end point. Find the % wt of calcite in limestone.
A certain solid metallic element has a density 7.87 g/cm and a molar mass of 55.85 g/mol. It crystallizes with a cubic unit cell, with an edge length of 286.7 pm. Show that the number of atoms per unit cell of the metal is 2. 3 For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). BI US Paragraph Arial 10pt
Identify the Classification of Hazardous Wastes. example: Dichloromethane - Halogenated organic solvent (a) Benzoic acid (b) Cellulose (c) Caffeine (d) Ethanol
C: Explain and draw Points Defects of crystalline engineering materials.
High-density polyethylene (HDPE) is opaque while low-density polyethylene (LDPE) is transparent. Which form of PE is mechanically more flexible? Justify your answer.
If mass of BCC Leaad Pb=207 g/ mol, and lattice parameter (a) =3.9211×10-8 cm,calculate the (الكثافه المثاليه ) perfect density of Pb //p^:-1
11.Which is NOT TRUE about thermoplastic polymers? a. they melt or deform on heating b. they cannot be shaped into the desired form c. chainsinteract only through intermolecularforce d. they have various applications su ch as in making plastics.
Q2// To calculate the surface density of atoms on a particular plane in a crystal. Consider the body-centered cubic structure and the (110) plane shown in Figure 1.8a. Assume the atoms can be represented as hard spheres with the closest atoms touching each other. Assume the lattice constant is a = 5 Å. Figure 1.8b shows how the atoms are cut by the (110) plane. a (а) (b)