Ta có: \(\left\{{}\begin{matrix}\%m_C=\dfrac{12.4}{12.4+8}.100\%\approx85,71\%\\\%m_H=100-85,71\approx14,29\%\end{matrix}\right.\)
Bạn tham khảo nhé!
\(M_{C_4H_8} = 12.4 + 8 = 56(g/mol)\)
Ta có :
\(\%C = \dfrac{12.4}{56}.100\% = 85,71\%\\ \%H = 100\% - \%C = 100\% - 85,71\% = 14,29\%\)
\(M_{C_4H_8}=12.4+8=56\)(\(g\)/\(mol\))
ta có:
\(\%C=\dfrac{12.4}{56}.100\%=85,71\%\)
\(\%H=100\%-\%C=100\%-85,71\%=14,29\%\)