[latex]Dane:[/latex] [latex] ho=2,59 frac{g}{dm^3} [/latex] [latex]\%C=82,8\%[/latex] [latex]\%H=17,2\%[/latex] [latex]V_0=22,4dm^3[/latex] [latex]n= frac{m}{M} ightarrow M= frac{m}{n} [/latex] [latex]V=nV_0 ightarrow V_0= frac{V}{n} [/latex] [latex] ho= frac{m}{V}= frac{ frac{m}{n}}{ frac{V}{n}} = frac{M}{V_0} [/latex] [latex]M_{C_xH_y}= ho*V_0=2,59 frac{g}{dm^3}*22,4dm^3=58,016 frac{g}{mol} [/latex] [latex]12 frac{g}{mol}*X+1 frac{g}{mol}*Y=58,016 frac{g}{mol} [/latex] [latex]12X+Y=58,016[/latex] [latex]Y=58-12X[/latex] [latex]Probujemy podstawiac[/latex] [latex]dla x=1 Longrightarrow Y=58-12=46 CH_{46} zle[/latex] [latex]dla x=2 Longrightarrow Y=58-24=34 C_2H_{34} zle[/latex] [latex]dla x=3 Longrightarrow Y=58-36=22 C_3H_{22} zle[/latex] [latex]dla x=4 Longrightarrow Y=58-48=10 C_4H_{10} dobrze[/latex] [latex]Odszukujemy wzor typu weglowodoru[/latex] [latex]C_XH_{2X+2}[/latex] [latex]Weglowodor to alkan , butan C_4H_{10}[/latex]
