Chemistry: Ahydrocarbon has the formula c2h4. what is the percent by mass of carbon in the compound?

Ahydrocarbon has the formula c2h4. what is the

Ответ:

live4dramaoy0yf9

16.01.2022

Chemistry

$\% C=85.7 \%$

Explanation:

Hello,

In order to compute the percent by mass of carbon in the ethene, C₂H₄, one applies the formula:

$\% C=\frac{n_C*m_C}{M_{C_2H_4}}*100\%$

Whereas n_C is the amount of carbon atoms into the hydrocarbon, m_C the carbon's atomic mass and $M_{C_2H_4}$ the molar mass of the ethene which is 28g/mol, thus:

$\% C=\frac{2*12g/mol}{28g/mol}*100\%\\ \% C=85.7\%$

Best regards.

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Ahydrocarbon has the formula c2h4. what is the percent by mass of carbon in the compound?

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