https://peda.net/id/01bc94be4ae 2019-03-20T09:23:06+02:00 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> https://peda.net/id/b87ae65e4bd 2019-03-21T14:56:19+02:00 <div>Esim. Jodia tuotetaan suolavedestä seuraavasti:</div> <div>(1)<img src="https://math-demo.abitti.fi/math.svg?latex=NaI%2BAgNO_3%5Crightarrow%20AgI%2BNaNO_3" alt="NaI+AgNO_3\rightarrow AgI+NaNO_3"/></div> <span>(2)</span><img src="https://math-demo.abitti.fi/math.svg?latex=2AgI%2BFe%5Crightarrow%20FeI_2%2B2Ag" alt="2AgI+Fe\rightarrow FeI_2+2Ag"/><br/> <span>(3)</span><img src="https://math-demo.abitti.fi/math.svg?latex=2FeI_2%2B3Cl_2%5Crightarrow2FeCl_3%2B2I_2" alt="2FeI_2+3Cl_2\rightarrow2FeCl_3+2I_2"/><br/> <div>a) Kirjoita kokonaisreaktio yhtälö</div> <div>Elinminoidaan ensin AgI, joka on reaktion (1) tuote ja reaktio (2) lähtöaine</div> <div>Kerrotaan reaktio (1) 2:lla:</div> <div><img src="https://math-demo.abitti.fi/math.svg?latex=2NaI%2B2AgNO_3%5Crightarrow%5Cunderrightarrow%7B2AgI%7D%2B2NaNO_3" alt="2NaI+2AgNO_3\rightarrow\underrightarrow{2AgI}+2NaNO_3"/></div> <img src="https://math-demo.abitti.fi/math.svg?latex=%5Cunderrightarrow%7B2AgI%7D%2BFe%5Crightarrow%20FeI_2%2B2Ag" alt="\underrightarrow{2AgI}+Fe\rightarrow FeI_2+2Ag"/> <div><img src="https://math-demo.abitti.fi/math.svg?latex=2NaI%2B2AgNO_3%2BFe%5Crightarrow2NaNO_3%2BFeI_2%2B2Ag%5C%20%5C%20%5C%20%5C%20%5C%20%5Cleft%7C%5Cright%7C%5Ccdot2" alt="2NaI+2AgNO_3+Fe\rightarrow2NaNO_3+FeI_2+2Ag\ \ \ \ \ \left|\right|\cdot2"/></div> <img src="https://math-demo.abitti.fi/math.svg?latex=4NaI%2B4AgNO_3%2B2Fe%5Crightarrow4NaNO_3%2B2FeI_2%2B4Ag" alt="4NaI+4AgNO_3+2Fe\rightarrow4NaNO_3+2FeI_2+4Ag"/><br/> <img src="https://math-demo.abitti.fi/math.svg?latex=2FeI_2%2B3Cl_2%5Crightarrow2FeCl%2B2I_2" alt="2FeI_2+3Cl_2\rightarrow2FeCl+2I_2"/> <div> <div><img src="https://math-demo.abitti.fi/math.svg?latex=4NaI%2B4AgNO_3%2B2Fe%2B2FeI_2%2B3Cl_2%5Crightarrow4NaNO_3%2B2FeI_2%2B4Ag%2B2FeCl%2B2I_2" alt="4NaI+4AgNO_3+2Fe+2FeI_2+3Cl_2\rightarrow4NaNO_3+2FeI_2+4Ag+2FeCl+2I_2"/><br/> <div>b) Kuinka monta moolia hopeanitraattia tarvitaan, jotta saadaan 1 mooli jodia?</div> <div>2 mol</div> </div> </div> 2019-03-21T14:56:19+02:00 https://peda.net/id/0be6829c4ae 2019-03-20T09:23:23+02:00 <div>Esim. Kaliumfluoridisulatteen käpi johdetaan 10,0A:n sähkövirta 5,0 tunnin ajan</div> <div>a) Kirjoita anodi-katodireaktiot</div> <div><img src="https://math-demo.abitti.fi/math.svg?latex=Anodi%3A%5C%202F%5E-%5Cleft(l%5Cright)%5Crightarrow%20F_2%5Cleft(g%5Cright)%2B2e%5E-%5Cleft(fluoridi-ionit%5C%20hapettuvat%5Cright)" alt="Anodi:\ 2F^-\left(l\right)\rightarrow F_2\left(g\right)+2e^-\left(fluoridi-ionit\ hapettuvat\right)"/></div> <img src="https://math-demo.abitti.fi/math.svg?latex=Katodi%3A%5C%20K%5E%2B%5Cleft(l%5Cright)%2Be%5E-%5Crightarrow%20K%5Cleft(s%5Cright)%5Cleft(Kalium-ionit%5C%20pelkistyv%C3%A4t%5Cright)" alt="Katodi:\ K^+\left(l\right)+e^-\rightarrow K\left(s\right)\left(Kalium-ionit\ pelkistyvät\right)"/><br/> <div>b) Kuinka monta gramma kaliumia muodostuu?</div> <div><img src="https://math-demo.abitti.fi/math.svg?latex=It%3DnzF" alt="It=nzF"/></div> <img src="https://math-demo.abitti.fi/math.svg?latex=I%3DK%C3%A4ytetty%5C%20virta%5C%20%5Cleft(A%5Cright)" alt="I=Käytetty\ virta\ \left(A\right)"/><br/> <img src="https://math-demo.abitti.fi/math.svg?latex=t%3Daika%5Cleft(s%5Cright)" alt="t=aika\left(s\right)"/><br/> <img src="https://math-demo.abitti.fi/math.svg?latex=n%3DHapettuvan%5C%20tai%5C%20pelkistyv%C3%A4n%5C%20aineen%5C%20ainem%C3%A4%C3%A4r%C3%A4%5C%20%5Cleft(mol%5Cright)" alt="n=Hapettuvan\ tai\ pelkistyvän\ aineen\ ainemäärä\ \left(mol\right)"/><br/> <img src="https://math-demo.abitti.fi/math.svg?latex=z%3DElektronien%5C%20m%C3%A4%C3%A4r%C3%A4%5C%20puolireaktiossa" alt="z=Elektronien\ määrä\ puolireaktiossa"/><br/> <img src="https://math-demo.abitti.fi/math.svg?latex=F%3DFaradayn%5C%20vakio%5C%2096485%5C%20%5Cfrac%7BAs%7D%7Bmol%7D" alt="F=Faradayn\ vakio\ 96485\ \frac{As}{mol}"/> <div><img src="https://math-demo.abitti.fi/math.svg?latex=n%5Cleft(K%5Cright)%3D%5Cfrac%7BIt%7D%7BzF%7D%3D%5Cfrac%7B10%7B%2C%7D0A%5Ccdot18000s%7D%7B1%5Ccdot96485%5C%20%5Cfrac%7BAs%7D%7Bmol%7D%7D%3D1%7B%2C%7D8655...mol" alt="n\left(K\right)=\frac{It}{zF}=\frac{10{,}0A\cdot18000s}{1\cdot96485\ \frac{As}{mol}}=1{,}8655...mol"/><br/> <img src="https://math-demo.abitti.fi/math.svg?latex=m%5Cleft(K%5Cright)%3Dn%5Cleft(K%5Cright)%5Ccdot%20M%5Cleft(K%5Cright)%3D1%7B%2C%7D8655...mol%5Ccdot39%7B%2C%7D10%5C%20%5Cfrac%7Bg%7D%7Bmol%7D%3D72%7B%2C%7D94...g%5Capprox73g" alt="m\left(K\right)=n\left(K\right)\cdot M\left(K\right)=1{,}8655...mol\cdot39{,}10\ \frac{g}{mol}=72{,}94...g\approx73g"/><br/> <div>c) Kuinka suuri tilauus (NTP) fluorikaasua muodostuu?</div> <div><img src="https://math-demo.abitti.fi/math.svg?latex=z%3D2%5Cleft(2F%5E-%5Crightarrow%20F_2%2B2e%5E-%5Cright)" alt="z=2\left(2F^-\rightarrow F_2+2e^-\right)"/></div> <img src="https://math-demo.abitti.fi/math.svg?latex=n%5Cleft(F_2%5Cright)%3D%5Cfrac%7B10%7B%2C%7D0A%5Ccdot18000s%7D%7B2%5Ccdot96485%5C%20%5Cfrac%7BAs%7D%7Bmol%7D%7D%3D0%7B%2C%7D9327...mol" alt="n\left(F_2\right)=\frac{10{,}0A\cdot18000s}{2\cdot96485\ \frac{As}{mol}}=0{,}9327...mol"/><br/> <img src="https://math-demo.abitti.fi/math.svg?latex=V%5Cleft(F_2%5Cright)%3Dn%5Cleft(F_2%5Cright)%5Ccdot%20Vm%3D0%7B%2C%7D9327...mol%5Ccdot22%7B%2C%7D41%5C%20%5Cfrac%7Bl%7D%7Bmol%7D%3D20%7B%2C%7D90...l%5Capprox21l" alt="V\left(F_2\right)=n\left(F_2\right)\cdot Vm=0{,}9327...mol\cdot22{,}41\ \frac{l}{mol}=20{,}90...l\approx21l"/><br/> <div> </div> <div> </div> <div> </div> <div> </div> </div> 2019-03-20T09:23:23+02:00