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Zinaida [17]
3 years ago
11

Which compound is classified as a hydrocarbon?

Chemistry
2 answers:
Andrej [43]3 years ago
5 0
<span>(2) butynu........................</span>
dybincka [34]3 years ago
4 0

<u>Answer:</u> The correct answer is Option 2.

<u>Explanation:</u>

Hydrocarbons are defined as the compounds which have a covalent bond present between hydrogen and carbon atoms. For Example: CH_4 is a hydrocarbon. H_2O,CO_2 are not considered as hydrocarbons.

For the given options:

<u>Option 1:</u> butanal

The chemical formula for this compound is CH_3CH_2CH_2CHO

This is not considered as a hydrocarbon because a covalent bond is present between carbon and oxygen atom.

<u>Option 2:</u> butyne

The chemical formula for this compound is CH\equiv CCH_2CH_3

This is considered as a hydrocarbon because covalent bonds are present between carbon and hydrogen atoms only.

<u>Option 3:</u> 2-butanol

The chemical formula for this compound is CH_3CH(OH)-CH_2CH_3

This is not considered as a hydrocarbon because a covalent bond is present between carbon and oxygen atom.

<u>Option 4:</u> 2-butanone

The chemical formula for this compound is CH_3C(O)-CH_2CH_3

This is not considered as a hydrocarbon because a covalent bond is present between carbon and oxygen atom.

From the above information, the correct answer is Option 2.

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if you have a solution that contains 46.85 g of codeine, C18H21NO3, in 125.5 g of ethanol, C2H5OH, what is the mole fraction of
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Answer:

The mole fraction of codeine is 5.4%

Explanation:

Mole fraction = Mole of solute / Total moles (Mole solute + Mole solvent)

Solute (Codeine)

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Mass / Molar mass = Mole →  46.85 g /299.36 g/m = 0.156 moles

Solvent (Ethanol)

Molar mass 46.07 g/m

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Mass of each silver coin = 5.67 g

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Calculating the moles of silver from given mass and molar mass of silver:

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3 years ago
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