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3 years ago

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A hydrocarbon, containing only C and H, can react with excess oxygen gas to produce carbon dioxide and water. The result of the

complete reaction of an unknown hydrocarbon with formula CxHy is shown in the table. What is the formula of the hydrocarbon?

2 answers:

Tcecarenko [31]3 years ago

5 0

I believe the answer you are looking for would be HC

Sergeeva-Olga [200]3 years ago

5 0

The formula is Cxy+O2

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Which of the following is an important intermediate in the mechanism of the reaction<br>in the box?

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<u>Answer:</u> The volume of NaOH required is 402.9 mL

<u>Explanation:</u>

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$\text{Molarity of the solution}=\frac{\text{Moles of solute}}{\text{Volume of solution (in L)}}$ .....(1)

<u>For HCl:</u>

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Putting values in equation 1, we get:

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<u>For sulfuric acid:</u>

Molarity of sulfuric acid solution = 0.125 M

Volume of solution = 503.4 mL = 0.5034 L

Putting values in equation 1, we get:

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Molarity of NaOH solution = 0.55 M

Moles of NaOH = 0.2216 moles

Putting values in equation 1, we get:

$0.55M=\frac{0.2216}{\text{Volume of solution}}\\\\\text{Volume of solution}=\frac{0.2216}{0.55}=0.4029L=402.9mL$

Hence, the volume of NaOH required is 402.9 mL

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