3.2 Tasapainoseoksen koostumuksen ratkaiseminen

3.2 Tasapainoseoksen koostumuksen ratkaiseminen https://peda.net/id/a7df856406f 2020-10-05T14:41:06+03:00 https://peda.net/:static/535/peda.net.logo.bg.svg <div class="license">Tämän sivun lisenssi <a rel="license" href="https://peda.net/info">Peda.net-yleislisenssi</a></div> 3.19 https://peda.net/id/1735ee22070 2020-10-05T15:48:39+03:00 a)<br/> <img src="https://math-demo.abitti.fi/math.svg?latex=H_2O%5Cleft(g%5Cright)%2BCl_2O%5Cleft(g%5Cright)%5Cxrightleftharpoons%5B%5D%7B%7D2%5C%20HOCl%5Cleft(g%5Cright)" alt="H_2O\left(g\right)+Cl_2O\left(g\right)\xrightleftharpoons[]{}2\ HOCl\left(g\right)"/><br/> <div><img src="https://math-demo.abitti.fi/math.svg?latex=K_c%3D0%7B%2C%7D090" alt="K_c=0{,}090"/></div> <div>lasketaan kaasujen ainemäärät</div> <div><img src="https://math-demo.abitti.fi/math.svg?latex=n%5Cleft(H_2O%5Cright)%3D%5Cfrac%7B1%7B%2C%7D0g%7D%7B18%7B%2C%7D01528%5C%20%5Cfrac%7Bg%7D%7Bmol%7D%7D%3D0%7B%2C%7D05550...mol%5Capprox55%7B%2C%7D5mmol" alt="n\left(H_2O\right)=\frac{1{,}0g}{18{,}01528\ \frac{g}{mol}}=0{,}05550...mol\approx55{,}5mmol"/><br/> <img src="https://math-demo.abitti.fi/math.svg?latex=n%5Cleft(Cl_2O%5Cright)%3D%5Cfrac%7B2%7B%2C%7D0g%7D%7B86%7B%2C%7D9054%5C%20%5Cfrac%7Bg%7D%7Bmol%7D%7D%3D0%7B%2C%7D02301...mol%5Capprox23%7B%2C%7D0mmol" alt="n\left(Cl_2O\right)=\frac{2{,}0g}{86{,}9054\ \frac{g}{mol}}=0{,}02301...mol\approx23{,}0mmol"/></div> <div><img src="https://math-demo.abitti.fi/math.svg?latex=K_c%3D%5Cfrac%7B%5Cleft%5BHOCl%5Cright%5D%5E2%7D%7B%5Cleft%5BH_2O%5Cright%5D%5Cleft%5BCl_2O%5Cright%5D%7D%5CRightarrow0%7B%2C%7D090%3D%5Cfrac%7Bx%5E2%7D%7B%5Cleft(0%7B%2C%7D0555-x%5Cright)%5Cleft(0%7B%2C%7D02301-x%5Cright)%7D" alt="K_c=\frac{\left[HOCl\right]^2}{\left[H_2O\right]\left[Cl_2O\right]}\Rightarrow0{,}090=\frac{x^2}{\left(0{,}0555-x\right)\left(0{,}02301-x\right)}"/><br/> <img src="https://math-demo.abitti.fi/math.svg?latex=%5Cleft(x%3D%E2%88%920%7B%2C%7D015772%5Cright)%5C%20tai%5C%20x%3D0%7B%2C%7D008007" alt="\left(x=−0{,}015772\right)\ tai\ x=0{,}008007"/><br/> <img src="https://math-demo.abitti.fi/math.svg?latex=%5Cbegin%7Barray%7D%7Bl%7Cl%7D%0A%26H_2O%26Cl_2O%26HOCl%5C%5C%0A%5Chline%0Ac_%7Balku%7D%260%7B%2C%7D0555%5C%20mol%260%7B%2C%7D0230%5C%20mol%260%5C%5C%0Amuutos%26-0%7B%2C%7D008007%26-0%7B%2C%7D008007%26%2B0%7B%2C%7D008007%5C%5C%0Ac_%7Btasap%7D%260%7B%2C%7D04749%260%7B%2C%7D015003%260%7B%2C%7D008007%0A%5Cend%7Barray%7D" alt="\begin{array}{l|l}
&H_2O&Cl_2O&HOCl\\
\hline
c_{alku}&0{,}0555\ mol&0{,}0230\ mol&0\\
muutos&-0{,}008007&-0{,}008007&+0{,}008007\\
c_{tasap}&0{,}04749&0{,}015003&0{,}008007
\end{array}"/><br/> <img src="https://math-demo.abitti.fi/math.svg?latex=%5Cleft%5BH_2O%5Cright%5D%3D0%7B%2C%7D047mol" alt="\left[H_2O\right]=0{,}047mol"/><br/> <img src="https://math-demo.abitti.fi/math.svg?latex=%5Cleft%5BCl_2O%5Cright%5D%3D0%7B%2C%7D015mol" alt="\left[Cl_2O\right]=0{,}015mol"/><br/> <img src="https://math-demo.abitti.fi/math.svg?latex=%5Cleft%5BHOCl%5Cright%5D%3D0%7B%2C%7D0080mol%5C%20" alt="\left[HOCl\right]=0{,}0080mol\ "/><br/> <br/> b)<br/> <br/> </div> <div>lasketaan HOCl-kaasun ainemäärä</div> <div><img src="https://math-demo.abitti.fi/math.svg?latex=n%5Cleft(HOCl%5Cright)%3D%5Cfrac%7B100g%7D%7B52%7B%2C%7D46%5C%20%5Cfrac%7Bg%7D%7Bmol%7D%7D%3D1%7B%2C%7D90621...mol" alt="n\left(HOCl\right)=\frac{100g}{52{,}46\ \frac{g}{mol}}=1{,}90621...mol"/><br/> <img src="https://math-demo.abitti.fi/math.svg?latex=K_c%3D0%7B%2C%7D090" alt="K_c=0{,}090"/><br/> <img src="https://math-demo.abitti.fi/math.svg?latex=K_c%3D%5Cfrac%7B%5Cleft%5BHOCl%5Cright%5D%5E2%7D%7B%5Cleft%5BH_2O%5Cright%5D%5Cleft%5BCl_2O%5Cright%5D%7D%5CRightarrow0%7B%2C%7D090%3D%5Cfrac%7B%5Cleft(1%7B%2C%7D90621...-x%5Cright)%5E2%7D%7Bx%5E2%7D" alt="K_c=\frac{\left[HOCl\right]^2}{\left[H_2O\right]\left[Cl_2O\right]}\Rightarrow0{,}090=\frac{\left(1{,}90621...-x\right)^2}{x^2}"/><br/> <img src="https://math-demo.abitti.fi/math.svg?latex=x%3D1.46631%5C%20%5Cleft(tai%5C%20x%3D2.72315%5Cright)" alt="x=1.46631\ \left(tai\ x=2.72315\right)"/></div> <div><img src="https://math-demo.abitti.fi/math.svg?latex=%5Cbegin%7Barray%7D%7Bl%7Cl%7D%0A%262%5C%20HOCl%26H_2O%26Cl_2O%5C%5C%0A%5Chline%0Ac_%7Balku%7D%261%7B%2C%7D90621%260%260%5C%5C%0Amuutos%26-x%26%2B%5Cfrac%7B1%7D%7B2%7Dx%26%2B%5Cfrac%7B1%7D%7B2%7Dx%5C%5C%0Ac_%7Btasap%7D%260%7B%2C%7D4399...%260%7B%2C%7D7331%260%7B%2C%7D7331%0A%5Cend%7Barray%7D" alt="\begin{array}{l|l}
&2\ HOCl&H_2O&Cl_2O\\
\hline
c_{alku}&1{,}90621&0&0\\
muutos&-x&+\frac{1}{2}x&+\frac{1}{2}x\\
c_{tasap}&0{,}4399...&0{,}7331&0{,}7331
\end{array}"/><br/> <img src="https://math-demo.abitti.fi/math.svg?latex=%5Cleft%5BHOCl%5Cright%5D%3D0%7B%2C%7D440%5C%20mol" alt="\left[HOCl\right]=0{,}440\ mol"/><br/> <img src="https://math-demo.abitti.fi/math.svg?latex=%5Cleft%5BH_2O%5Cright%5D%3D0%7B%2C%7D733%5C%20mol" alt="\left[H_2O\right]=0{,}733\ mol"/><br/> <img src="https://math-demo.abitti.fi/math.svg?latex=%5Cleft%5BCl_2O%5Cright%5D%3D0%7B%2C%7D733%5C%20mol" alt="\left[Cl_2O\right]=0{,}733\ mol"/></div> 2020-10-05T15:48:39+03:00 3.18 https://peda.net/id/8267ab0e070 2020-10-05T15:15:51+03:00 <img src="https://math-demo.abitti.fi/math.svg?latex=%5Cleft%5BFe%5Cleft(SCN%5Cright)%5Cright%5D%5E%7B2%2B%7D%5Cleft(aq%5Cright)%5Cxrightleftharpoons%5B%5D%7B%7DFe%5E%7B3%2B%7D%5Cleft(aq%5Cright)%2BSCN%5E-%5Cleft(aq%5Cright)" alt="\left[Fe\left(SCN\right)\right]^{2+}\left(aq\right)\xrightleftharpoons[]{}Fe^{3+}\left(aq\right)+SCN^-\left(aq\right)"/><br/> <div><img src="https://math-demo.abitti.fi/math.svg?latex=K_c%3D9%7B%2C%7D10%5Ccdot10%5E%7B-4%7D%5C%20%5Cfrac%7Bmol%7D%7Bl%7D" alt="K_c=9{,}10\cdot10^{-4}\ \frac{mol}{l}"/></div> <div><img src="https://math-demo.abitti.fi/math.svg?latex=%5Cbegin%7Barray%7D%7Bl%7Cl%7D%0A%26%5Cleft%5BFe%5Cleft(SCN%5Cright)%5Cright%5D%5E%7B2%2B%7D%26Fe%5E%7B3%2B%7D%26SCN%5E-%5C%5C%0A%5Chline%0Ac_%7Balku%7D%262%7B%2C%7D00%260%260%5C%5C%0Amuutos%26-x%26%2Bx%26%2Bx%5C%5C%0Ac_%7Btasap%7D%262%7B%2C%7D00-x%26%26%0A%5Cend%7Barray%7D" alt="\begin{array}{l|l}
&\left[Fe\left(SCN\right)\right]^{2+}&Fe^{3+}&SCN^-\\
\hline
c_{alku}&2{,}00&0&0\\
muutos&-x&+x&+x\\
c_{tasap}&2{,}00-x&&
\end{array}"/><br/> <img src="https://math-demo.abitti.fi/math.svg?latex=K_c%3D%5Cfrac%7B%5Cleft%5BFe%5E%7B3%2B%7D%5Cright%5D%5Cleft%5BSCN%5E-%5Cright%5D%7D%7B%5Cleft%5B%5Cleft%5BFe%5Cleft(SCN%5Cright)%5Cright%5D%5E%7B2%2B%7D%5Cright%5D%7D%5CRightarrow9%7B%2C%7D10%5Ccdot10%5E%7B-4%7D%3D%5Cfrac%7Bx%5E2%7D%7B2%7B%2C%7D00-x%7D" alt="K_c=\frac{\left[Fe^{3+}\right]\left[SCN^-\right]}{\left[\left[Fe\left(SCN\right)\right]^{2+}\right]}\Rightarrow9{,}10\cdot10^{-4}=\frac{x^2}{2{,}00-x}"/></div> <div><img src="https://math-demo.abitti.fi/math.svg?latex=x%3D-0%7B%2C%7D043119%5C%20tai%5C%20x%3D0%7B%2C%7D042209" alt="x=-0{,}043119\ tai\ x=0{,}042209"/></div> <div>vain positiivinen käy tähän</div> <div> </div> <div><img src="https://math-demo.abitti.fi/math.svg?latex=%5Cbegin%7Barray%7D%7Bl%7Cl%7D%0A%26%5Cleft%5BFe%5Cleft(SCN%5Cright)%5Cright%5D%5E%7B2%2B%7D%26Fe%5E%7B3%2B%7D%26SCN%5E-%5C%5C%0A%5Chline%0Ac_%7Balku%7D%262%7B%2C%7D00%260%260%5C%5C%0Amuutos%26-x%26%2Bx%26%2Bx%5C%5C%0Ac_%7Btasap%7D%262%7B%2C%7D00-0%7B%2C%7D042209%3D1%7B%2C%7D95779%260%7B%2C%7D042209%260%7B%2C%7D042209%0A%5Cend%7Barray%7D" alt="\begin{array}{l|l}
&\left[Fe\left(SCN\right)\right]^{2+}&Fe^{3+}&SCN^-\\
\hline
c_{alku}&2{,}00&0&0\\
muutos&-x&+x&+x\\
c_{tasap}&2{,}00-0{,}042209=1{,}95779&0{,}042209&0{,}042209
\end{array}"/></div> <div><img src="https://math-demo.abitti.fi/math.svg?latex=%5Cleft%5BFe%5Cleft(SCN%5Cright)%5Cright%5D%5E%7B2%2B%7D%3D1%7B%2C%7D96%5C%20%5Cfrac%7Bmol%7D%7Bl%7D" alt="\left[Fe\left(SCN\right)\right]^{2+}=1{,}96\ \frac{mol}{l}"/><br/> <img src="https://math-demo.abitti.fi/math.svg?latex=%5Cleft%5BFe%5E%7B3%2B%7D%5Cright%5D%3D0%7B%2C%7D04%5C%20%5Cfrac%7Bmol%7D%7Bl%7D" alt="\left[Fe^{3+}\right]=0{,}04\ \frac{mol}{l}"/></div> <div><img src="https://math-demo.abitti.fi/math.svg?latex=%5Cleft%5BSCN%5E-%5Cright%5D%3D0%7B%2C%7D04%5C%20%5Cfrac%7Bmol%7D%7Bl%7D" alt="\left[SCN^-\right]=0{,}04\ \frac{mol}{l}"/></div> 2020-10-05T15:15:51+03:00 3.17 https://peda.net/id/c17f4542070 2020-10-05T15:03:18+03:00 <br/> <img src="https://math-demo.abitti.fi/math.svg?latex=8H_2O%5Cleft(g%5Cright)%2B6CO%5Cleft(g%5Cright)%5Cxrightleftharpoons%5B%5D%7B%7DH_2%5Cleft(g%5Cright)%2BCO_2%5Cleft(g%5Cright)" alt="8H_2O\left(g\right)+6CO\left(g\right)\xrightleftharpoons[]{}H_2\left(g\right)+CO_2\left(g\right)"/><br/> <br/> <img src="https://math-demo.abitti.fi/math.svg?latex=K_c%3D2%7B%2C%7D0" alt="K_c=2{,}0"/><br/> <img src="https://math-demo.abitti.fi/math.svg?latex=K_c%3D%5Cfrac%7B%5Cleft%5BH_2%5Cright%5D%5Cleft%5BCO_2%5Cright%5D%7D%7B%5Cleft%5BH_2O%5Cright%5D%5Cleft%5BCO%5Cright%5D%7D%5CRightarrow2%7B%2C%7D0%3D%5Cfrac%7Bx%5E2%7D%7B14%7D" alt="K_c=\frac{\left[H_2\right]\left[CO_2\right]}{\left[H_2O\right]\left[CO\right]}\Rightarrow2{,}0=\frac{x^2}{14}"/><br/> <div><img src="https://math-demo.abitti.fi/math.svg?latex=x%3D%5Cpm2%5Csqrt%7B7%7D%5Capprox%5Cpm5%7B%2C%7D2915" alt="x=\pm2\sqrt{7}\approx\pm5{,}2915"/></div> <div>vain positiivinen voi olla oikein kys. tilanteessa</div> <div><img src="https://math-demo.abitti.fi/math.svg?latex=%5Cleft%5BH_2O%5Cright%5D%3D8-5%7B%2C%7D2915%5Capprox2%7B%2C%7D7" alt="\left[H_2O\right]=8-5{,}2915\approx2{,}7"/><br/> <img src="https://math-demo.abitti.fi/math.svg?latex=%5Cleft%5BCO%5Cright%5D%3D6-2%7B%2C%7D5915%5Capprox0%7B%2C%7D7%5C%20" alt="\left[CO\right]=6-2{,}5915\approx0{,}7\ "/><br/> <img src="https://math-demo.abitti.fi/math.svg?latex=%5Cleft%5BH_2%5Cright%5D%3D0%2B5%7B%2C%7D2915%5Capprox5%7B%2C%7D3" alt="\left[H_2\right]=0+5{,}2915\approx5{,}3"/><br/> <img src="https://math-demo.abitti.fi/math.svg?latex=%5Cleft%5BCO_2%5Cright%5D%3D0%2B5%7B%2C%7D2915%5Capprox5%7B%2C%7D3" alt="\left[CO_2\right]=0+5{,}2915\approx5{,}3"/></div> <div> </div> 2020-10-05T15:03:18+03:00