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3. Graphing is an essential skill used throughout chemistry courses and other sciences. Here is a problem dealing with the creation and use of a graph. The solubility, S, of K2SO4 is given as grams K2SO4 per 100.0 g of H20 (that is, the number of grams of K2S04 that will dissolve in 100.0 g of H20 to form a saturated solution). The experimental data are: T/°C 20 40 60 80 100 9.8 14.2 18.3 21.6 25.9 a. On graph paper, plot the solubility (ordinate, or y-axis) versus the temperature (abscissa, or x- axis). Follow the points outlined in your Lab Manual on plotting data. Your plot must include labeled axes (showing necessary units), and a title (such as "Solubility of K2SO4 in Water as a Function of Temperature"). Spread out your data (that is, "expand the axes") so that your plot covers a large portion of the page of graph paper. Use your graph to answer the questions below. b. Determine the mass of K2SO4 that will dissolve in 250.0 g of H20 to form a saturated solution at 70.0 °C. С. Determine the temperature at which 67.5 g K2SO4 will dissolve in 450.0 g H2O to form a saturated solution.

3. Graphing is an essential skill used throughout chemistry courses and other sciences. Here is a problem dealing with the creation and use of a graph. The solubility, S, of K2SO4 is given as grams K2SO4 per 100.0 g of H20 (that is, the number of grams of K2S04 that will dissolve in 100.0 g of H20 to form a saturated solution). The experimental data are: T/°C 20 40 60 80 100 9.8 14.2 18.3 21.6 25.9 a. On graph paper, plot the solubility (ordinate, or y-axis) versus the temperature (abscissa, or x- axis). Follow the points outlined in your Lab Manual on plotting data. Your plot must include labeled axes (showing necessary units), and a title (such as "Solubility of K2SO4 in Water as a Function of Temperature"). Spread out your data (that is, "expand the axes") so that your plot covers a large portion of the page of graph paper. Use your graph to answer the questions below. b. Determine the mass of K2SO4 that will dissolve in 250.0 g of H20 to form a saturated solution at 70.0 °C. С. Determine the temperature at which 67.5 g K2SO4 will dissolve in 450.0 g H2O to form a saturated solution.

World of Chemistry, 3rd edition
World of Chemistry, 3rd edition
3rd Edition
ISBN:9781133109655
Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste
Chapter9: Chemical Quantities
Section: Chapter Questions
Problem 41A
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3. Graphing is an essential skill used throughout chemistry courses and other sciences. Here is a problem dealing with the creation and use of a graph. The solubility, S, of K2SO4 is given as grams K2SO4 per 100.0 g of H2O (that is, the number of grams of K2S04 that will dissolve in 100.0 g of H2O to form a saturated solution). The experimental data are: T/°C 20 40 60 80 100 9.8 14.2 18.3 21.6 25.9 On graph paper, plot the solubility (ordinate, or y-axis) versus the temperature (abscissa, or x- a. axis). Follow the points outlined in your Lab Manual on plotting data. Your plot must include labeled axes (showing necessary units), and a title (such as "Solubility of K2SO4 in Water as a Function of Temperature"). Spread out your data (that is, "expand the axes") so that your plot covers a large portion of the page of graph paper. Use your graph to answer the questions below. b. Determine the mass of K2SO4 that will dissolve in 250.0 g of H20 to form a saturated solution at 70.0 °C. С. Determine the temperature at which 67.5 g K2SO4 will dissolve in 450.0 g H2O to form a saturated solution. d. Determine the mass of K2SO4 that will crystallize when 500.0 g of a saturated solution at 100.0 °C is cooled to form a saturated solution at 20.0 °C. e. Determine the mathematical equation that describes 'S' as a function of 'T'.
Transcribed Image Text:3. Graphing is an essential skill used throughout chemistry courses and other sciences. Here is a problem dealing with the creation and use of a graph. The solubility, S, of K2SO4 is given as grams K2SO4 per 100.0 g of H2O (that is, the number of grams of K2S04 that will dissolve in 100.0 g of H2O to form a saturated solution). The experimental data are: T/°C 20 40 60 80 100 9.8 14.2 18.3 21.6 25.9 On graph paper, plot the solubility (ordinate, or y-axis) versus the temperature (abscissa, or x- a. axis). Follow the points outlined in your Lab Manual on plotting data. Your plot must include labeled axes (showing necessary units), and a title (such as "Solubility of K2SO4 in Water as a Function of Temperature"). Spread out your data (that is, "expand the axes") so that your plot covers a large portion of the page of graph paper. Use your graph to answer the questions below. b. Determine the mass of K2SO4 that will dissolve in 250.0 g of H20 to form a saturated solution at 70.0 °C. С. Determine the temperature at which 67.5 g K2SO4 will dissolve in 450.0 g H2O to form a saturated solution. d. Determine the mass of K2SO4 that will crystallize when 500.0 g of a saturated solution at 100.0 °C is cooled to form a saturated solution at 20.0 °C. e. Determine the mathematical equation that describes 'S' as a function of 'T'.
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