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Organic Chemistry (342) - Inorganic Chemistry (123)
- Analytical Chemistry (1387)
- Physical Chemistry (62)
- General Chemistry (478)
- Chemistry AllOther (190)
Besides the extent of branching, can you think of any other structural parameters that might lead to differences in physical properties? : Polymer Chemistry
669What kinds of structural changes accompany bond-breaking and bond-forming in olefin polymerization? : Polymer Chemistry
1217What are the other ways in which chemists can manipulate the properties of polymers? : Polymer Chemistry
623How does the molecular-level structure of these polymers influence their physical properties? : Polymer Chemistry
1 1256Examine samples of ldpe (sandwich bag, squeeze bottle) and hdpe (milk jug, grocery bag). What are some of the differences in the physical properties of these substances? : Polymer Chemistry
707A polymer's structure influences its physical properties. Describe two structural variations that are possible for polypropylene but not for polyethylene. : Polymer Chemistry
602What are some of the polymers that you encounter every day? Describe their physical properties. : Polymer Chemistry
683Atactic polypropylene is always produced with the [cp2zr(r)]+ catalyst. Explain this on the basis of molecular-level interactions. : Polymer Chemistry
564What is the difference between a heterogeneous and a homogeneous catalyst? What are some of the advantages of homogeneous catalysts? : Polymer Chemistry
578"Co-polymers" consist of two different monomers ("a" and "b") joined in an alternating fashion (ababab...). Block co-polymers also consist of two different monomers, but in this case blocks of polymer containing only a units are joined to blocks of polymer containing only b units (aaaaabbbbb...). How might block co-polymers be synthesized? : Polymer Chemistry
612How an electrochemical is measured? Define emf of an electrochemical cell? : Electrochemistry Corrosion
580What are the differences between chemical and electrochemical corrosion? : Electrochemistry Corrosion
593
what is mean by ambient temperature?
How many electrons does benzene have?
As a chemist working with Protactinium, what safety measures and precautions would you take due to its radioactivity?
In order to avoid the pyridine catalyst use in many synthesis which is harmfull to environment, which catalyst can be used....?
Why do you require laboratory temperature for viscosity determination?
Q1. Why did you enter the field of chemistry? Q2. What has motivated you to take chemistry as your professional subject and have you motivated anyone towards your field?
What is the diference between residual solvents and organic volatile matter
How to fix the sample conc. in Related substances test by HPLC?
Explain the difference between hcl acid and hcl gas?
what is mean by dissolution hydrodynamics?
Why a1% value is used for some product ? What is the criteria for selection a1% value ?
[3/30, 13:29] Manoj P Venkatpurwar: How hplc column selection according to structure? How mobile phase buffer selection on molecule structure?
What are the two most abundant elements in the universe?
What is the formula for relative diffrence for standard solution in solution stability in validation?
calibrtion procedue of LC-MS
