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Bess [88]
3 years ago
15

a) Two common types of commercial glue are epoxy and superglue. Epoxy cannot be dissolved in any solvent, while superglue can be

dissolved in acetone. What does this information tell you the molecular architecture in these polymers
Chemistry
1 answer:
faust18 [17]3 years ago
8 0

Answer:

Epoxy is cross-linked while super glue is branched.

Explanation:

The combinations of monomers to produce a giant molecule is known as polymerization and the products of polymerization reaction are called polymers.

The property of the two polymers that is being tested here is their solubility that is their dissolving abilities/nature.

When a polymer can dissolves for instance super glue dissolving in acetone it is said that the polymer is BRANCHED.

When a polymer can not dissolve in solvent, i is said that the polymer is CROSS LINKED.

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Answer:

x = 33.52 amu

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It is given that,

Isotope A has a mass of 34 amu and an abundance of 52%, isotope B has a mass of 33 amu and an abundance of 48%.

Let x is the average atomic mass of this element. It can be calculated as follows :

x=52\%\ \text{of}\ 34+48\%\ \text{of}\ 33\\\\x=\dfrac{52}{100}\times 34+\dfrac{48}{100}\times 33\\\\x=0.52\times 34+0.48\times 33\\\\x=33.52\ \text{amu}

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