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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. auntion that dosccribes 'S' as a function of 'T'

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. auntion that dosccribes 'S' as a function of 'T'

Biochemistry
Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
Section: Chapter Questions
Problem 1P
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80 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 H20 (that is, the number of grams of K2SO4 that will dissolve in 100.0 g of H2O to form a saturated solution). The experimentaldata are: T/°C 40 09 20 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 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 H2O 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:80 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 H20 (that is, the number of grams of K2SO4 that will dissolve in 100.0 g of H2O to form a saturated solution). The experimentaldata are: T/°C 40 09 20 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 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 H2O 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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