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What will be the molecular weight of poly A chain having 100 residues where AMP has weight of 300?
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∙ 13y ago
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∙ 13y ago
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How molecular weight determined by nmr spectroscopy?
NMR isn't really used to determine molecular weight in general. It can be done for certain oligomers by, for instance, determining the ratio of end-group protons to protons that only occur in the "middle" of the chain.
Why you have to make nylon salt first in polymeration of nylon 610?
Without the salt step, if you compounds do not react in stoichiometric proportions, chain termination can occur too quickly and limit molecular weight.
What is the molar mass of c-phycocyanin?
The alpha chain is 18 kda and the beta is 21 kda. But usually Phycocyanin exists as trimer along with some linker peptides. The molecular weight of trimer is 121 kda
Which part of the breakdown of glucose requires molecular oxygen O2?
the electron transport chain
What level of molecular organization is a beta-folded sheet?
A beta-folded sheet is a secondary structure of a protein, which is the next level of molecular organization above the primary structure. It is formed by hydrogen bonding between adjacent segments of a polypeptide chain, creating a flat and elongated sheet-like structure.
What is the average molecular weight of PVC?
62.5 * length of chain ( num of moluclar of vcm )!! think that
What is structure of immunoglobulin?
the basic structure of the immunoglobulin gene natural immunoglobulin molecule containing four heterologous polypeptide chain, in which the molecular weight known as the heavy chain and lower molecular weight light chain. Two H chains and two L-chain amino acids in the same natural Ig molecules are composed of exactly the same.
What is the molecular weight of Chlorinated polyvinyl chloride resin?
Molecular weight of a polymer depends rather on it's degree of polymerization (chain length) than on it's composition. Typical polymer molecular weights are in the range of 1000 to 1000 000 and beyond.
How molecular weight determined by nmr spectroscopy?
NMR isn't really used to determine molecular weight in general. It can be done for certain oligomers by, for instance, determining the ratio of end-group protons to protons that only occur in the "middle" of the chain.
What are polypeptide composed of?
A polypeptide is a chain of amino acids linked by peptide bonds, with a molecular weight of up to about 10,000. It is composed of amino acids.
What is the approximate molecular weight of a protein with 682 amino acid residues in a single polypeptide chain?
Haha wait are you in Amherst College biochemistry? What are the odds that 682 showed up on another college's problem set? Use 110 g/mol per amino acid (already corrected for the loss of water in amino acid condensation during formation of the protein) and multiply.
What is Polydispersity?
In organic chemistry, the polydispersity index (PDI), is a measure of the distribution of molecular mass in a given polymer sample. The PDI calculated is the weight average molecular weight divided by the number average molecular weight. It indicates the distribution of individual molecular masses in a batch of polymers. The PDI has a value always greater than 1, but as the polymer chains approach uniform chain length, the PDI approaches unity (1). For some natural polymers PDI is almost taken as unity. The PDI from polymerization is often denoted as: \ PDI = M_w/M_n
How do you distinguish between a macro-molecular from molecular?
A macromolecule is formed from many molecules linked together in a chain and of course has a higher molecular mass.
Do pesticide residues in food harm people's health?
Residues in food can harm human health because the poisonous chemicals that are in the pesticide gets carried through the food chain and the highest in the food chain gets the most effect as the poison builds up To read more visit the Related Link.
What chemical reaction formed these large molecules?
Large organic molecules (macromolecules) are generally formed by condensation reactions between smaller molecules.Condensation means that a small molecule is formed from the atoms removed during the reaction. In cells, the small molecule is water, so the type of condensation reaction is dehydration.Examples:glucose + (chain of n glucose residues) forms chain of n + 1 residues + wateramino acid + (chain of n amino acid residues) forms chain of n + 1 residues + water
Disulfide bonds in a protein chain connect what?
Could depend on what your options are but out of my multiple choice answers this was the best:two cysteine residues.
If insulin contains 3.4 percent sulfur what is the least moleculer weight of insulin?
Insulin is a hormone that regulate the homeostasis of glucose if the levels are above than normal. Insulin protein is made up of 51 amino acids, that gives the molecular weight about 5808 Da.There are disulphide linkages present between chain A and chain B of insulin protein that is provided by sulfur containing amino acid cysteine.
