The Solubility of thousand nitrate Aim: The aim of this examine is to find pop by how much the solvability of grand nitrate into distilled peeing increases when the solution is heated, and if yes, by how much. Hypothesis: According to entropy on the internet, 3.75 × 10¹ moles of grand nitrate answer in 100g of piddle system. I believe this development may be correct. I also believe that as the solute is absorbing egressside heat, the dexterity is increased causing it to dissolve both faster, with more one thousand nitrate. Apparatus: Bunsen burner 25g Potassium nitrate Distilled water simmering tube Clamp Thermometer Method: 1) Weigh out 25g Potassium Nitrate into a grinding tube. 2) rack up 10ml water 3) barrack solution over bunsen until potassium nitrate dissolves, miserable the tube in and out of the flame so it doesnt hum over. 4) Allow to cool and record temperature at which crystals appear 5) Add 5ml of water and repeat steps 3) and 4) 6) Repeat st ep 5) until you rich person 30ml of water in the boiling tube 7) Transform data so it is verbalized as a mass of potassium nitrate per 100g of water. 8) Graph Results: Water (ml)Temp at which crystals appear ( C)Potassium Nitrate (g) per 100g of water 10101250 1599166.6 2097125 2595100 309383.
3 Mass of potassium nitrate fade away at 40 : 64g Mass of potassium nitrate change state at 80 : 169g Mass obtained as crystals when solution cooled from 80 to 25 : 134g or 79.3% Two graphs: one(a) from the internet, one made concord to our results. Conclusion: From the results we can see that the solubili ty of potassium nitrate is increased as the ! temperature is increased. The relationship is nonlinear, which gist it doesnt form a straight line when plotted on a graph. Now, thither are three... If you want to get a full essay, shape it on our website:
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