MA = 2.30 = 60 (g/mol)
\(m_C=\dfrac{60.60}{100}=36\left(g\right)\Rightarrow n_C=\dfrac{36}{12}=3\left(mol\right)\)
\(m_H=\dfrac{60.13,33}{100}=8\left(g\right)\Rightarrow n_H=\dfrac{8}{1}=8\left(mol\right)\)
\(m_O=\dfrac{60.26,67}{100}=16\left(g\right)\Rightarrow n_O=\dfrac{16}{16}=1\left(mol\right)\)
=> CTPT: C3H8O
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