... in the boiling tube. I will repeat the experiment in order to get some precise results. After repeating the experiments I will have two sets of results, I will work out the average and then I will plot the graphs. The way that my experiment will be made fair is that only one thing will be changed and that is the concentration but all the other ... 1 72 79 75.5 132.45 10 20 0.67 147 151 149 67.11 5 25 0.33 350 362 356 28.08 0 30 0 680 691 685.5 14.59 From these results two graphs will be plotted, one on the average time and one on the Rate 1/t (X 10000). Conclusion From my results, the c...

• Word Count: 912
• Approx Pages: 4
• Grade Level: High School

... the calcium carbonate chips, it will be produced and collected in a measuring cylinder which is filled with water, as the gas is produced the amount of water decreases I will measure the amount decreased in cm3 I will take readings every minute • I will repeat this three times to make sure ... it is a fair test • I will measure the rate of reaction for three different temperatures 210c, 130c and 310c Evaluation The experiment I think went very well and I managed to get all the information I needed which ... I am very pleased about. The amounts of gas are not actually spot on accura...

• Word Count: 891
• Approx Pages: 4
• Grade Level: High School

... in seconds (to make it inverse). This provides me with directly comparable rates of reaction, because as the time gets longer, the rate (the time inverted) is much slower, I will also create 2 more inaccurate graphs showing the results with a line of bets fit. I will repeat the whole experiment twice, in order to reduce ... the effects of any freak results which may occur, by using averages to make a conclusion. To make the experiment ... the flask. If the conical flask is wider then the cloudiness will appear less concentrated, because it will be spread across the larger area of the bot...

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... and purified. Sodium chloride is an ionic compound formed with the metal sodium and the non-metal chlorine. Below shows the dot-cross diagram for the formation of sodium chloride: Diagram 1: Formation of sodium chloride To convert sodium chloride into hydrogen, chlorine and sodium hydroxide, we must electrolyse sodium chloride. The sodium chloride is dissolved in water and two electrodes ... can react, causing the products to become impure. This can be done by separating the two electrodes with a barrier. The mercury cathode cell keeps apart the products of the electrolysis of sodium chl...

• Word Count: 1092
• Approx Pages: 4
• Grade Level: High School