Explain why bimolecular condensation is a poor method for making unsymmetricalethers such as ethyl methyl ether

Q: An Echellette grating has 2336 lines/mm. What diffraction line (in nm) would be observed at an angle…

A: Given the angle of incidence is 430 and the angle of reflection is 50

Q: What type of column packing material is used where diethylamino ethyl sephadex belongs?

A: Sephadex is a cross-linked dextran gel used for gel filtration. It was launched by Pharmacia in…

Q: Show by calculation how many unit cells of iron share one carbon atom when it is dissolved to…

A: Introduction: Unit cell: Unit cell is the smallest repeating unit of crystal structure. The unit…

Q: Proposed a laboratory procedures on how to determine polymer molecular weight based on osmotic…

A:

Q: 1) During a melting point determination, the heating is constant and causes the temperature of the…

A: "Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Producing a polymer part whose medium of use will be water at a constant temperature of 90°C is…

A: The above mentioned polymer chain has a repeating unit which contain amide group. Amide are formed…

Q: Fill in the blanks with the following choices:

A: answer -   (a) The precipitation of bulky precipitates (e.g. MgNH4PO4) traps significant amount of…

Q: not

A: In the photohalogenation reaction, alkane is treated with halogen group(Br2/Cl2) in the presence of…

Q: What is the purpose of placing the round bottom flask in a warm bath during rotary evaporation

A: Rotary evaporation is the process of reducing the volume of a solvent by distributing it as a thin…

Q: How does crystallinity affect the mechanical properties of materials. with proper reference

A: Introduction: We have to explain how crystallinity affect the mechanical properties of material.

Q: A Simple Cubic crystal shows a first-order diffraction peak on (1 00) plane while Body Centered…

A: The simple cubic crystal, BCC (body-centered cubic), and FCC (Face-centered cubic) are the types of…

Q: Draw two Lewis structures of the vinyl acetate. Between these structures, identify and label areas…

A:

Q: Trans-oleic acid (18:1,D9) has a melting temperature of (44.5C) and cis-oleic acid (18:1,D9) has a…

A: Since we know that the melting point of any molecule is proportional to the effective packing of the…

Q: Explore the effect of IMFs on vapor pressure. Flask 1 Gas Ethanol Flask 2 Gas Methanol Temperature…

A: Molar mass of CH3OH = ? Molar mass of CH3CH2OH = ?

Q: Explain the definition of heating rate. How does it affect the observation of melting point?

A: Given,  Explain the definition of heating rate. How does it affect the observation of melting point?

Q: Draw a diagram and explain Schottky and Frenkel defects in solids. State one application of each of…

A: Defects in solid crystals refers to distortion in crystal structure. It may be stoichiometric (no…

Q: What is the main factor in not observing the glass transition behavior in highly cross-linked and…

A: Glass transition behavior in highly cross-linked and highly crystalline polymers.

Q: Heating of the oil bath must done slowly to get a more accurate reading of the melting point of a…

A: To observe the accurate melting point of a sample it is important to heat the sample slowly near the…

Q: Explain what type of carbonate polymorphs may be present in saw dust derived biochar prepared at 300…

A: Saw dust is also known as wood shaving. It is by product obtained from biochar.

Q: The glancing angle of a Bragg reflection from a set of crystals planes separated by 128.2 pm is…

A:

Q: One of the polymers that exhibit tacticity is polypropylene. Show the structure of atactic,…

A:

Q: a) what ‘s the solution?

A: Since you have posted multiple questions, we will solve only first question for you. If you want any…

Q: Line defects or dislocations are abrupt change in atomic order along a line. A dislocation is the…

A:

Q: c. Nylon 6 and poly(e-caprolactone) have similar polymer backbone structure with one carbonyl, 5…

A: Introduction :  Polymer can be defined as the substance containing a large number of repeating units…

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: The generic structural formula for a 1-alkyl-3-methylimidazoliumcation is where R is a —CH2(CH2)nCH3…

A: As the length of alkyl group increases the structure becomes more and more non planar or…

Q: Phase 1: Calculate pressure of ĝås čollected Uv 1 Answer the question

A: As per the guideline, Since you have asked multiple questions, we will solve the first question for…

Q: The table below shows the normal boiling points of benzeneand benzene derivatives. (a) How many of…

A: (a) The dispersion forces are present in all substances. This type of force depends upon the…

Q: Polymer PXX has a glass transition temperature of 49°C. What is the typical appearance and…

A: The temperature at which polymer undergo transition from glassy to

Q: 11c. Nylon 6 and poly(ε-caprolactone) have similar polymer backbone structure with one carbonyl, 5…

A: Hers is your answer.....

Q: The vapor pressure of 1-chlorotetradecane at several temperatures are tabulated below.     T (ºC)…

A:

Q: Why does a transparent polymer turn opague in the necked region when tested in tension.

A: Answer -  Transparent polymers are usually opaque because of light scattering on the numerous…

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

A:

Q: Briefly discuss the effect of thermodynamic on polymerization.

A: Polymerization is a process in which many monomers join together to form a large macromolecule.…

Q: Always increases surface pressure (below the CMC) Results in micelles (above the CMC) Can be…

A: In colloidal and surface chemistry, the critical micelle concentration is defined as the…

Q: How would you expect the positions of peaks in a ZnS powder X-ray diffraction pattern to compare…

A: X-RAY DIFFRACTION: X-ray diffraction is an analytical method which is used to determine the…

Q: What is glass transition and melting temperatures Tg and Tm? Briefly describe

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: What effect does the presence of an α-Methyl group in a polymer chain have on the glass transition…

A: The effect of alpha Methyl group on the glass transition temperature (Tg) in a polymer chain is as…

Q: for the liquid ethanol, is the energy cost to break the IMFs more likely to be smaller or larger?

A: The intermolecular forces in ethanol are hydrogen bond, London dispersion forces, dipole dipole-…

Q: The following data apply to a 1g sample of a granular powder Volume of the solid alone = 1 cm3/2g…

A:

Q: Which point defect in ionic crystal does not alter the density of the relevant solid?

A: The missing of atoms or ions in an ideal or imaginary crystal structure or lattice and the…

Q: prove that the rc/ra =0.225 for coord number 4 in ceramic crystal structur

A:

Q: Explain the behavior of a cooled and remelted sample.

A: Given- A capillary shows a substantially higher melting point of 145°C. Repeated recrystallization…

Q: It is preferable to use the conical beaker for the crystallization process

A: Beakers (cylindrical) have a very wide surface area, which allows hot liquids to evaporate more…

Q: alculate the plane density of (l10) plane at BCC Crystal structure ?

A: The crystal structure is BCC  The plane is (110)

Q: Stationary phase/s that can be used for both HILIC and NPLC Diol Cyano Unmodified silica…

A:

Q: Explain why the configuration of a polymer of isobutylene is neither isotactic, syndiotactic, nor…

A: Configuration of a polymer of isobutylene: The three possible configurations for polymers formed…