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My plan is to find the determination of solubility curve of potassium chlorate.

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Introduction

Solubility of potassium chlorate Plan My plan is to find the determination of solubility curve of potassium chlorate. Prediction My prediction is to find that the solubility of potassium chlorate (kClO3) increases as the temperature increases. Apparatus The apparatus that I used during the experiment were * Bunsen burner * Tripod * Gauze * Safety goggles * Heat resistance mat * A boiling tube * A test tube rack * Thermometer * Burette * Two glass beakers * Two grams of potassium chlorate Safety measures Wear safety goggles and lab coat. When do the experiment stand up don't sit down. Use caution when dealing with chemicals. Hot boiling tubes and beakers can cause burns. ...read more.

Middle

* Stir the contents with a thermometer record the temperature at which the KClO3 crystals first reappear. * Add another 4ccm distilled water from the burette to the boiling tube and stir the contents with the thermometer and record the temperature at which the first KClO3 crystals reappear. * Repeat this step another three times using the same boiling tube. * Then take another boiling tube and add 2 grams of potassium chlorate and repeat the whole experiment in same way to obtain a second set of results. Diagram Calculations Solubility (g/100g of water) = mass of solute (g) x 100 Mass of water 2/4 x 100 = 50 2/8 x 100 = 25 2/12 x 100 = 16.67 2/16 x 100 = 12.5 2/20 x 100 = 10 average temp = (temp1 + temp2) ...read more.

Conclusion

Evaluation After doing the experiment and concluding that the solubility of potassium chlorate increases when temperature increases and also finding that other solids behave like this I feel that the experiment was successful. By using accurate apparatus like the burette and thermometer I believe that I have obtained reliable results. By also repeating to get a second set of results and finding the averages has also made my results reliable. From the graph I can clearly see it is a solubility curve as is should have drawn a line of best fit to suit my results. There are also other experiments that could be done to obtain results for the solubility of potassium chlorate and surely the same conclusion would be drawn up. But I think that the experiment I did was not so accurate but reliable enough. ...read more.

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