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fredd [130]
3 years ago
10

A benzene ring has alternating double bonds in a -membered ring. Please help me asap

Chemistry
1 answer:
Lisa [10]3 years ago
6 0
(C)

3 double bonds alternating with 3 single bonds, making it a 6 sided ring!


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The heat of vaporization of diethyl ether is . Calculate the change in entropy when of diethyl ether boils at . Be sure your ans
natima [27]

Answer:

\Delta S=900\frac{J}{K}

Explanation:

Hello!

In this case, since the information is not missing, the following one will be used as it is found on similar problems:

\Delta h=26.7kJ/mol\\T_b=34.6\°C\\m=769.0g

In such a way, we use the following equation to compute the entropy:

\Delta S=\frac{n\Delta h}{T_b}

Whereas n (moles) are computed by using its molar mass (74.14 g/mol) as follows:

n=769.0g*\frac{1mol}{74.14g}=10.4mol

\Delta S=\frac{10.4mol*26.7\frac{kJ}{ml} }{(34.6+273.15)K}\\\\\Delta S=0.900 \frac{kJ}{K} \\\\\Delta S=900\frac{J}{K}

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3 years ago
What the correct answer?
alexandr402 [8]

B. Bleach and sea water should be identified as bases

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In the given question, the pH scale measures for bleach is 8 and for sea water it is 13. So, bleach is basic, not neutral and Sea water is basic too instead of acid. So, Bleach and sea water should be identified as bases.

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A 50-mL beaker only has a scale that measures 10, 20, 30, and 40 mL. What is the uncertainty associated with the 50 mL beaker.
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Which of the following descriptions of gravitational force is NOT TRUE?
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Answer:

B

Explanation:

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