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katovenus [111]
2 years ago
7

A solution contains 10.0 g pentane, C5H12, 20.0 g hexane, C6H14, and 10.0 g benzene, C6H6. What is the mole fraction of hexane?

Chemistry
1 answer:
GREYUIT [131]2 years ago
7 0

Answer:

b) 0.47

Explanation:

MwC5H12 = 72.15g/mol

⇒mol C5H12 = (10.0)*(mol/72.15)=0.1386molC5H12

MwC6H14=86.18g/mol

⇒molC6H14=(20.0)*(mol/86.18)=0,232

MwC6H6=78.11g/mol

⇒molC6H6=(10.0)*(mol/78.11)=0.128molC6H6

<h3>XC6H14=(0.232)/(0.1386+0.232+0,128)=0.465≅0.47</h3>
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Answer:

Explanation:

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Among the options given on the attached document, since phenolic functional group is characterized by a benzene ring bonded with a hydroxyl group (C₆H₅OH) we can see that the first option correctly points out such description. Thus, answer is on the second attached picture. Other options are related with other sections found in eugenol that are not phenolic.

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<span>I believe the correct 2nd reaction is:</span>

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615 g of isopropanol (C3H7OH) per liter

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