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3 years ago

Which of the following hydrocarbons contains the greatest percent by mass of carbon?

Chemistry

1 answer:

astraxan [27]3 years ago

8 0

C₂H₂ has the greatest percent by mass of carbon (92.3%)

<h3>Further explanation</h3>

Given

Hydrocarbons

Required

The greatest percent by mass of Carbon

Solution

Proust states <em>the Comparative Law</em> that compounds are formed from elements with the same Mass Comparison so that compounds have a constant composition of elements

% A in AxBy = (x.Ar A/MW AxBy) x 100%

C₃H₄ = 3.12/40 x 100%=90%

CH₄ = 12/16 x 100% = 75%

C₂H₄=2.12/28 x 100% = 85.7%

C₂H₂=2.12/26 x 100% = 92.3%

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marta [7]

Answer:

$\huge\boxed{5 \ m/s}$

Explanation:

<u>Given:</u>

Distance = S = 50 m

Time = t = 10 secs

<u>Unknown:</u>

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<u>Formula:</u>

v = S/t

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<u>Solution:</u>

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Hope this helped!

<h2>~AnonymousHelper1807</h2>

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3 years ago

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valentina_108 [34]

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3 years ago

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Olegator [25]

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