Introductory Chemistry: A Foundation
9th Edition
ISBN:9781337399425
Author:Steven S. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Donald J. DeCoste
Chapter17: Equilibrium
Section: Chapter Questions
Problem 15CR
Related questions
Question
B please
![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!](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F01c27009-e3fc-45a6-bbb8-f0e6e9b52dcf%2Fb3f57439-9e45-4a30-97f3-7e64271ca7ec%2Fk24g6z8.jpeg&w=3840&q=75)
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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