Chem Ia Temperature And Solubility Of A Salt Post Lab Assignment 1 Calculate The Mass Of Kno That Could Be Dissolved I 1 (32.99 KiB) Viewed 34 times
Chem Ia Temperature And Solubility Of A Salt Post Lab Assignment 1 Calculate The Mass Of Kno That Could Be Dissolved I 2 (38.06 KiB) Viewed 34 times
Chem IA Temperature and Solubility of a Salt Post Lab Assignment 1. Calculate the mass of KNO; that could be dissolved in 100g of water for each of your test tubes. 2. Create a graph in Excel of Solubility of KNO, in g of solute/100g of water versus the temperature. This graph should have 3 data points, one from each test tube. 3. Fit the data in the graph to two different models. One where it is a linear trendline, and one where it is polynomial trend line of order 2. Print both graphs and attach them to the report. Make sure to include the equation for the curve. 4. Using the polynomial fit equation, determine the amount of KNO, that could dissolve in 100g of water at 30°C. Show all work. Does the answer you got seem reasonable? Why or why not?
Test Tube #1 Mass of KNO3 added 4.002g Temperature of crystallization: 47.00 470i Average temperature of recrystallization: 47. Oce Test Tube #2 Mass of KNO3 added Temperature of crystallization: 6.00% 627 e 63.0c 62,85/ Average temperature of recrystallization: Test Tube #3 Mass of KNO3 added Temperature of crystallization: 80069 78.28 o i 77. i 77.6 Average temperature of recrystallization:
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