The life of Garibaldi Essay Example for Free

The life of Garibaldi EssayGet the squeeze ready and place the tile on the clamp, then place the conical flaskful on the tile. cleanse your burette with your diluted HCl to replace any previous liquids which may intervene in the results. Now safe the burette to the clamp making accepted the nozzle is facing in the conical flask. You should now hit your apparatus set-up like this 30/5230/35230/image006. gif Funnel Burette filled with diluted HCl Conical Flask hug Tile Ca(OH) and Indicator i Now everything should be ready. From your volumetric flask, empty out the diluted HCl into a normal beaker.Using this beaker fill the burette up to the 0 mark with a funnel. i fall out titrating slowly until the solution has totally reacted. Then record the results noting how much HCl you used. Record the results in a worthy format and repeat the experimentation at least three more time for more accuracy. at last record the average (mean) titre. i SAFTEY this is extremely important as you be handling hydrochloric acid. Goggles moldiness be worn at all times, hair must be tied back and bags must remain under the desk. If anything goes wrong, consult the teacher immediately.Always remember to work safely as HCl gage be hazardous to your skin, the indicator may stain your clothing as well. (Accuracy) The pipette, burette and volumetric flask only have a percentage error of + or 0. 1%. This is a small error. That is wherefore they are used in this experiment. Be sure to take precautions such as making sure that when you pour in the HCl or Ca(OH) you do not let it run down the sides because some volition be left on the sides thus making an inaccuracy. As you can see above, the bold says10. 0cm3 of your Ca(OH), when sooner it should have been 25. 0cm3.The reason for this is because there was not equal of the Ca(OH) to perform all the experiments. This is a limitation ascribable to the fact that 25. 0cm3 would have been a more completed measure because 10. 0c m3 may not be enough for a clear result. AnalysisJ Rough Accurate 1 Accurate 2 Accurate 3 last(a) burette reading cm3 37. 3 37. 2 37. 1 37. 3 Initial burette reading cm3 0 0 0 0 Volume used cm3 37. 3 37. 2 37. 1 37. 3 hateful titre cm3 37. 3 37. 2 37. 1 37. 3 This is the final part to the probe. In this part of the investigation I aim to determine the final concentration of the limewater solution.I will go through my counting step by step and explain what I am doing along the way. Starting off, lets look at what we have. The equation for the reaction is 30/5230/35230/image001. gif Ca(OH)2(aq) + 2HCl(aq) CaCl(aq) + 2H2O(L). For the Ca(OH) we are trying to find the concentration in mol g dm-3. However we have the volume (10. 0cm3 is how much we er solution. This would change the colour of the solution to light orangish tree which would change to pink by the kibosh of the titration. 5. After that I will place the flask onto a white tile placed on a clamp stand.Then I will up to (p) the tap of the burette that is held in the clamp stand and let the acid neutralise the alkali. 6. By the end of titration the limewater solution turns pink which indicates that it has been neutralised. 7. I will repeat the experiment at least thrice to call it a fair test. Repeating the experiment will also ensure that the results that I get are accurate.The reaction that takes place can be described with the help of this balanced equation Ca (OH)2 + 2HCl i CaCl2 + 2H2O In order to get reliable results from the exper at the end point would be reached before the equivalence. shifting Control You need t ensure that you take your chemicals from the same batch so as not to get two different concentrations each time you test them. Temperature and pressure should have no final result on the reaction Organisation Set up the equipment as shown in the diagram below, ensuring that the burette valve is closed. top de-ionised water through the burette and wash all of the equipment wit h it First of all dilute the hydrochloric acid exploitation by adding slowly 25ml of 2.00moldm-3 HCl to 475ml of de-ionised water in the 500ml beaker.Then, using a pipette, put 100ml of the HCl solution into the burette tack together 50ml of limewater into a conical flask using the pipette then add 5 drops of methyl orange to the solution, this should turn the solution a pale orange Open the .. . molarity 1dm3 = 10x10x10cm3 = 1000cm3 1(Molarmass) = 8. 12gdm3 Evaluation My practical experiment went quite well and I got a variety of results, which were suitable for the task given. My results show that I got two identical results and one just 1. 1cm3 off. Which suggests that I have been accurate and precise during the experiment. By being accurate it came about by specific apparatus I used, which restricted errors. However during the experiment I came crosswise an array o