Answer:
<h2>8.03 g/mL</h2>Explanation:
The density of a substance can be found by using the formula
From the question we have
We have the final answer
<h3>8.03 g/mL</h3>Hope this helps you
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2 answers:
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Answer:
Explanation:
In Polystrene, the molecular formula for the repeat unit = ;
and the atomic weights of Carbon C = 12.01 g/mol
For Hydrogen, it is 1.01 g/mol
Hence, the repeat unit molecular weight is:
m = 8 (12.01 g/mol)+8(1.01 g/mol)
m = 96.08 g/mol + 8.08 g/mol
m = 104.16 g/mol
The degree of polymerization = no-average molecular weight/repeat unit molecular weight.
Mathematically;