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Determine the mass of K2SO4 that will dissolve in 250.0 g of H20 to form a saturatedsolution at 70.0 °C.

Determine the mass of K2SO4 that will dissolve in 250.0 g of H20 to form a saturatedsolution at 70.0 °C.

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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4. Graphing is an essential skill used throughout chemistry courses and other sciences. Here is aproblem 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 K2SO4 that will dissolve in 100.0 g of H20 to form a saturated solution). The experimentaldata are: T/°C 40 09 14.2 18.3 21.6 25.9 On graph paper, plot the solubility (ordinate, or y-axis) versus the temperature a. (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 aFunction of Temperature"). Spread out your data (that is, "expand the axes") so that your plotcovers 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 saturatedsolution at 70.0 °C. C. Determine the temperature at which 67.5 g K2SO4 will dissolve in 450.0 g H20 to forma saturated solution. d. Determine the mass of K2SO4 that will crystallize when 500.0 g of a saturated solutionat 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'. Note: Information on graphing can be found in the introductory material for the lab manual. You must use quality graph paper ... “4 squares to 1 inch" grid paper is NOT graph paper!
Transcribed Image Text:4. Graphing is an essential skill used throughout chemistry courses and other sciences. Here is aproblem 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 K2SO4 that will dissolve in 100.0 g of H20 to form a saturated solution). The experimentaldata are: T/°C 40 09 14.2 18.3 21.6 25.9 On graph paper, plot the solubility (ordinate, or y-axis) versus the temperature a. (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 aFunction of Temperature"). Spread out your data (that is, "expand the axes") so that your plotcovers 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 saturatedsolution at 70.0 °C. C. Determine the temperature at which 67.5 g K2SO4 will dissolve in 450.0 g H20 to forma saturated solution. d. Determine the mass of K2SO4 that will crystallize when 500.0 g of a saturated solutionat 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'. Note: Information on graphing can be found in the introductory material for the lab manual. You must use quality graph paper ... “4 squares to 1 inch" grid paper is NOT graph paper!
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