Graphing Calculator Predicting Solubility from Tabular Data The graphing calculator can run a programthat graphs solubility data. Given solubility measurements for KCl, you will use the data to predict its solubility at various temperatures. Go to Appendix C. If you are using a TI-83 Plus, you can download the program and data sets and run the application as directed. Press the APPS key on your calculator, then choose the application CHEMAPPS. Press 3 then highlight ALL on the screen, press 1 , then highlight LOAD and press 2 to load the data into your calculator. Press the keys 2nd and then QUIT, and then run the program \(\mathrm{SOLUBIL}\) . For \(\mathrm{L}_{1}\) press 2nd and LIST and choose SOL21. If you are using another calculator, your teacher will provide you with keystrokes and data sets to use. $$\begin{array}{l}{\text { a. At what temperature would you expect }} \\ {\text { the solubility to be } 48.9 \text { g per } 100 \mathrm{g} \mathrm{H}_{2} \mathrm{O} \text { ? }} \\\ {\text { b. At what temperature would you expect }} \\ {\text { the solubility to be } 35 \mathrm{g} \text { per } 100 \mathrm{g} \mathrm{H}_{2} \mathrm{O} \text { ? }} \\ {\text { c. What would you expect the solubility to }} \\ {\text { be at a temperature of } 100^{\circ} \mathrm{C} ?}\end{array}$$

Step by step solution

01

Load solubility data into the graphing calculator

Use the instructions given to load the solubility data. Press the APPS key on the calculator, select the application CHEMAPPS, press 3, highlight ALL, press 1, highlight LOAD and press 2. Then press the keys 2nd and QUIT, and run the program SOLUBIL.

02

Find the temperature for a solubility of 48.9 g per 100g of water

Go to L1 (press 2nd and LIST and choose SOL21) and search for the value that is closest to 48.9. Note down the corresponding temperature, which is the temperature at which you can expect the solubility to be 48.9 g per 100g of water.

03

Find the temperature for a solubility of 35 g per 100g of water

In the same way as in Step 2, find the temperature corresponding to a solubility closest to 35 in the L1 list. This would be the temperature at which you can expect the solubility to be 35g per 100g of water.

04

Find the solubility at a temperature of 100 degrees Celsius

Search for the temperature closest to 100 degrees Celsius in the L1 list and note down the corresponding solubility. This is the solubility you can expect at a temperature of 100 degrees Celsius.

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