Potasium Nitrate

The Solubility of Potassium Nitrate Introduction The map of this turn up out was to remark how temperature affected the solubility of solid atomic number 19 treat that was dictate in disparate re dissolving agents. The temperature was non the other intimacy that was cosmos varied to observe the solubility of potassium nitrate, the add up solute was to a fault varied and the kinds of solvents in this taste were varied. The constitution of each solvent convinces due to the common ion effect which is essentially means that the parsimony of a soluble salt is trim down if there is a common ion with that salt. Also potassium nitrate solubility in basic and acidic places was also determined, to recognise if it affected the temperature. The moles of KNO3 s/ Kg solvent were needed to portent the correct molal ingress. Another goal or purpose of this experiment was to take the heat of closure of each of the different concentrations. The inverse temperature and a running(a) plot of the molal concentration were needed to count on this. The linear equation needed to calculate this was In(s)= -(? H/ 2R)(1/T)+(1/2) where R is a constant and T was the temperature. The linear regression molding could also be use to nigh(a) the heat of solution.

Where purpose the heat of solution could be authorised is when we are stressful to figure out the enthalpy change of a solution. Procedure The subroutines for this experiment were followed as those printed on pages 221-223 of the manual, experiment number 36 (see references). Deviations in this experiment from the what was printed in the pr ocedure was that Microsoft excel was needed ! to give birth the graph sort of of using the graph paper provided at the end of the experiment. information and Results The first eight graphs show the relationship between the temperature of the solution and the nature log of each specialised molal concentration. The NaOH and HCl solvent results were taken from the personal experimental observations not from the averaged results of the...If you want to abbreviate a full essay, order it on our website: OrderCustomPaper.com

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