all right so in the experiment voltaic cell so we will compare the theoretical cell potential of voltaic cells to the experimental measurement of the voltaic cell that we will see for the cell potential so as you can see these two are our sensors that are connected to the labquest these are voltage sensor and these are our two cells for voltaic cell one this one this beaker has solution this beaker has copper solution and these are our captors on the anodes so in our voltaic cell one our energies zinc so as anode we will use this dink ware and zinc where we'll go to the dink solution a node in inert solution so I will put it here and as you can see from your procedure that your voltaic cell one has 0.1 molar zinc solution that's what it is and that's what I'm putting my anode zinc and in my copper solution I have to put copper cathode and this is my copper cathode which is just a copper where so I'll take piece and put the copper wire in the copper solution this is also point one molar copper now before you start taking the measurement of Volta Excel one we have to first calibrate the sensor for doing that we will connect this red probe to the black probe so this is our positive end this is the negative end so we will attach them together if we press this this open up and then we can attach them together and now the voltage should be zero so it's already showing me zero here on the labquest but it's normal to show it some other value which will fracture it in that case we'll press here and you will press the zero button sorry you'll press on this red field and press on the zero and now it knows that now the potential is zero as my red probe and my black probe are touching together so now that i'm done during the calibration i can move on to my voltaic cell 1 so the which is my anode should be connected to my black one which is the negative probe this is my negative voltage so I'll attach it here we have to press it to open it and then we can connect the wire here and we have to make sure it's immersed in the zinc solution and our copper which is the cathode should be connected to the red probe which is our positive end so we open this prong and we connect the copper wire here and emerge it in our copper solution okay but our circuit is not ready yet we have to connect this anode and cathode solution with a salt bridge so these are our salt breeds which are just a filter paper cut in this shape and they should be immersed in the potassium nitrate solution whenever you are not using them so now that we need a salt breeze to connect our and a solution and Catford solution I'll pick a salt breeze up from this potassium nitrate solution and connect our anode and cathode cell with this salt please make sure that it is immersed in the solution of both of these beakers all right so it's connected in the solution of both the beaker so now our cell is ready it has a full circuit and as you can see we are seeing a cell potential which is our experimental majored cell potential here and you are supposed to take this reading at the last column of your worksheet to where you can see it says cell potential major so we are doing cell 1 so these cell 1 potential value goes to this field here and that's how we are done with the measurement of cell potential of our voltaic cell 1 I take out the salt to breathe now the term done measuring my cell potential and put it in a waste we will use a new salt grease for our cell 2 okay and I'm also taking the temperature of our voltaic cell 1 which is 25.4 degree Celsius moving on to voltaic cell 2 where we have to use this zinc solution but now 0.05 smaller zinc solution not for the 1 molar so I will just change my distinct solution and take a jinkx solution that is 0.05 molar now how did we make it we simply want to reduce the concentration to have so for doing that we just took 10 milliliter of our 0.1 molar zinc solution from our voltaic cell 1 and added 10 milliliter of Deanna's to water in that and is teared it with the steering rod this way we get now 0.05 molar zinc solution for our voltaic cell 2 and of course the gene where again into the zinc solution and for our cathode solution we have the same thing the 0.1 molar copper so that's where what you have and of course we need the copper we're in it so I'm not changing it it's the same copper whereas before and now our cell is ready to be connected with salt breeze and I will take a new salt breeze from our potassium nitrate solution I'll put one end in our cathode solution and if you tear it off just use another one so one end in the anode solution and another end in the cathode solution make sure that they are immersed in the solution and now our circuit is complete red probe is connected to the cathode black probe that is the negative portion is connected to the anode the solutions are connected to the salt fries and now we can take the reading of our cell cotton shell on the labquest which we see our point nine zero and that value should go to the measured cell potential of yourself - so the last column of yourself - should be this value you are seeing on the labquest all right so now that we have taken the measurement of our voltaic cell - we will take the temperature of one of these beakers because we need this temperature to use it in Lance - equation to get the calculated cell potential so remember to take the temperature of each beaker so the temperature for our voltaic cell two is twenty five point six degrees Celsius of course to use it in your Nernst equation you have to convert it into Kelvin so now let's move on to the voltaic cell three so we will discard this salt breeze now in voltaic cell three we are using silver instead of zinc so now we can get rid of our zinc anode and never throw them in the West container always put them in the respective container provided to you for them so for where I will put them in this drinkware container so that they can be reused again do not throw them in the waste container now for our anode at this time we will use silver so I will take out a silver where to be used as our anode there is the silverware I'll connect it as our anode and of course our silver anode has to go to the silver solution which is point one molar so I already have their solution here this is silver point one molar this is where our silver and naught should go into so I'll put this silverware in here connected to the black probe which is our negative part of the sensor [Music] and our cathode is copper again the same concentration point 1 molar so we have the copper where in there connected to the red probe which is our positive voltage and now we will connect it with the salt rails will take a new salt breeze from the potassium nitrate solution emerge one end to one solution and another end to another solution make sure their em are still the solutions all right and then we can measure the cell potential and as you can see it's a negative cell potential of around 0.38 now the cell potential can vary depending on the temperature of the day the size of your anode and cathode and the shape and size of your salt breathe slowly member that it can vary from time to time and now that we have taken the cell potential of our voltaic cell 3 we will put it in our last column for cell 3 and we will also take the temperature of our beaker so that we can use that value in on our installation and it is twenty five point five degree Celsius for voltaic cell 3 now that you're done with volt xa3 we will discard the salt breeze and now we have to use silver anode solution but now it will be point zero five molar so basically you will take so basically we will take 10 milliliter of this silver solution add 10 milliliter of deionized water is tare it together and then your concentration will become 0.05 molar so we have already prepared that so this is my zero five molar silver solution which will be my inert solution now so I'll put to my anode in my silver solution and my cathode is again copper and the solution is the same point one molar copper solution now I will connect them with the salt freeze one end in one solution another end in another solution and make sure they are submerged and now you have the complete circuit and you can see the cell potential on the labquest which is negative around 0.37 now that we have taken the cell potential for voltaic cell for we put that at the measured fill in our worksheet tube and we will take the temperature of our voltaic cell for so the temperature is twenty five point three degree Celsius now we can discard this salt breeze and prepare ourself five our cell five will be a zinc solution so now we will need our and not again so I will take off this silverware and take another wear and put it as our anode and attach it to the negative portion the black probe here and this has to go into the zinc solution which is point one molar so here is our Jing solution just 15 milliliter of 0.1 molar zinc solution we'll put our zinc we're in the zinc solution and as the cathode now we have silver instead of copper so we will discard this copper we're in the copper where container and then we will take up silverware son using the silverware from my self or attach it to the red part which is the positive part of the sensor and then I'll remove my copper solution and bring my silver solution and it has to be the 0.05 molar silver solution so you can use the silver solution from your voltaic cell for that you just used or you can just take 10 milliliter of 0.1 molar silver at 10 milliliter of giannis water and the spirit and it'll get your 0.05 molar silver so I will add the silverware in the silver solution and now we have the correct and cathode and the respective solutions now we just have to connect it with the salt please so again one end of salt breeze goes into the energy solution and other end goes into the Catholic solution make sure they're in the solution and now you can take the major of your cell potential from the labquest as you can see it's positive and it's 1.34 now that you have taken the value put it in the voltaic cell 5 last column as your measured value in lab and also don't forget to take the temperature of your voltaic cell 5 so we'll see the temperature here and it's 25 point 2 degree Celsius all right so now that you're done with her voltaic cell five we'll get rid of the salt breeze will keep the wear to the respective containers so silverware goes to the silverware container zinc wire goes to the zinc wire container so when you're moving from one voltaic cell to another and you do not have your circuit here this reading should be zero but as you can see it's not showing you zero so in the middle of the experiment before setting up a new cell voltaic cell you can zero it again so just touch these two ends together press on this red field and press on this zero button so that the sensor is calibrated that these should be zero then you can go ahead and make your next voltaic cell also another thing that you might want to keep in mind is that when you have your voltaic cell set up like this and if you are not keeping it a stable like this if your cathode and anode are moving you can see that your cell potential is changing it's not giving you a stable fixed value you don't want that you want to keep this anode and cathode as stable in the solution as you can so try to keep it like this where they're not moving at all and then you will see that the value will stay at a fixed cell potential value and that's desirable and when you are done with your voltaic cell potential measurements all the solutions go into the qual lab waste container remember all the salt breeze that you used throughout your five voltaic cells they have to go into the normal trash bins in your lab not in the cual lab waste only the who it and solutions can go in this waste like your solutions of a northern Catherine but this salt breeze has to go into the normal waste container being in your lab