What is the difference between a heterogeneous and a homogeneous catalyst? What are some of the advantages of homogeneous catalysts? : Polymer Chemistry
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pH range of methanol and acetic acid is ........
"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
Define a hydrogen bond?
Examine 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
Head-to-tail polymerization of propylene is observed with the [cp2zr(r)]+ catalyst. Explain this result on the basis of molecular-level interactions. : Polymer Chemistry
Define dipole moment?
how to mesure a relation of assay by HPLC and purity in results?
Whai is the QUAITY as according to pharma or cemica or agro chemica industry?
what is the principle involved in determination of moisture content?
How can chemists control which type of polyethylene (ldpe vs. Hdpe) is generated? : Polymer Chemistry
Explain what is the net charge of a non-ionized atom?
Why we have to add 200mg Na2CO3 in preparation of 0.1N sodium thiosulfate solution?