$CnH2n+2 O+O2\rightarrow nCO2+(n+1)H2O$ $0,1 0,1n 0,1n+0,1 mol$$CnH2nO +O2\rightarrow nCO2+nH2O$ $a an an mol$$nH2O=0,4 mol, nCO2=0,3 mol\rightarrow n ankanol=0,4-0,3=0,1 mol$$có \begin{cases}0,1n+an=0,3 \\ (14n+18).0,1+(14n+16)a=6,8 \end{cases}\rightarrow \begin{cases}a=0,05 \\ n=2 \end{cases}$$\rightarrow \begin{cases}C2H5OH 0,1 mol \\ CH3CHO 0,05 mol \end{cases}$$trong 3,4g X có \begin{cases}C2H5OH=0,05 mol \\ CH3CHO=0,025 mol \end{cases}$$có CH3CHO phản ứng tạo nAg=0,025.2=0,05 mol\rightarrow mAg=5,4g$$2. CnH2n+2O + \frac{3n}{2}O2\rightarrow nCO2+(n+1)H2O$ $0,9 0,75 mol$$\rightarrow n=4\rightarrow C4H9OH$$CTCT: CH3-CH2-CH2-CH2-OH : butan-1-ol$$CH3-CH(OH)CH2-CH3: butan-2-ol$$(CH3)3C-OH: 2-metyl-propan-2-ol$$(CH3)2CH-CH2-OH: ancol isobutylic$
$CnH2n+2 O+O2\rightarrow nCO2+(n+1)H2O$ $0,1 0,1n 0,1n+0,1 mol$$CnH2nO +O2\rightarrow nCO2+nH2O$ $a an an mol$$nH2O=0,4 mol, nCO2=0,3 mol\rightarrow n ankanol=0,4-0,3=0,1 mol$$có \begin{cases}0,1n+an=0,3 \\ (14n+18).0,1+(14n+16)a=6,8 \end{cases}\rightarrow \begin{cases}a=0,05 \\ n=2 \end{cases}$$\rightarrow \begin{cases}C2H5OH 0,1 mol \\ CH3CHO 0,05 mol \end{cases}$$trong 3,4g X có \begin{cases}C2H5OH=0,05 mol \\ CH3CHO=0,025 mol \end{cases}$$có CH3CHO phản ứng tạo nAg=0,025.2=0,05 mol\rightarrow mAg=5,4g$$2. CnH2n+2O + \frac{3n}{2}O2\rightarrow nCO2+(n+1)H2O$ $0,9 0,75 mol$$\rightarrow n=4\rightarrow C4H9OH$$CTCT: CH3-CH2-CH2-CH2-OH$$CH3-CH(OH)CH2-CH3$$(CH3)3C-OH$$(CH3)2CH-CH2-OH$
$CnH2n+2 O+O2\rightarrow nCO2+(n+1)H2O$ $0,1 0,1n 0,1n+0,1 mol$$CnH2nO +O2\rightarrow nCO2+nH2O$ $a an an mol$$nH2O=0,4 mol, nCO2=0,3 mol\rightarrow n ankanol=0,4-0,3=0,1 mol$$có \begin{cases}0,1n+an=0,3 \\ (14n+18).0,1+(14n+16)a=6,8 \end{cases}\rightarrow \begin{cases}a=0,05 \\ n=2 \end{cases}$$\rightarrow \begin{cases}C2H5OH 0,1 mol \\ CH3CHO 0,05 mol \end{cases}$$trong 3,4g X có \begin{cases}C2H5OH=0,05 mol \\ CH3CHO=0,025 mol \end{cases}$$có CH3CHO phản ứng tạo nAg=0,025.2=0,05 mol\rightarrow mAg=5,4g$$2. CnH2n+2O + \frac{3n}{2}O2\rightarrow nCO2+(n+1)H2O$ $0,9 0,75 mol$$\rightarrow n=4\rightarrow C4H9OH$$CTCT: CH3-CH2-CH2-CH2-OH
: butan-1-ol$$CH3-CH(OH)CH2-CH3
: butan-2-ol$$(CH3)3C-OH
: 2-metyl-propan-2-ol$$(CH3)2CH-CH2-OH
: ancol isobutylic$