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Bess [88]
2 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]2 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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How many hydrogen atoms are in 89.5 g of<br> C6H6 ?<br> Answer in units of atoms.
Elodia [21]

Solution :

Molar mass of C_6H_6 is :

M = 6×12 + 6×1 g

M = 78 g

78 gram of C_6H_6 contains 6.022 \times 10^{23} molecules.

So, 89.5 gram of C_6H_6 contains :

n = 6.022 \times 10^{23} \times \dfrac{89.5}{78}\\\\n = 6.91 \times 10^{23}

Now, from the formula we can see that one molecule of C_6H_6 contains 2 hydrogen atom . So, number of hydrogen atom are :

h = 2\times 6.91 \times 10^{23}\\\\h = 1.38 \times 10^{22}\ atoms

Hence, this is the required solution.

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How many moles are in 525 g of ammonia, NH3?<br> 8940.75 M<br> 0.03 M<br> 30.83 M
victus00 [196]

Answer:

30.83 M

Explanation:

17.03052 re in one mole. So, if you multiply it by 30.83, you will get 535 g of ammonia.

In fact, the detailed answer is 30.827009392549122.

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