Concept explainers
Interpretation:
The approximate molarity of the given solution and the value of Henry’s law constant for the given gas are to be calculated.
Concept introduction:
According to Henry’s law, the temperature and solubility of dissolved gas are inversely related. When temperature increases, kinetic energy increases which causes the molecules to break the intermolecular bonds and escape from the solution. Hence solubility decreases.
Answer to Problem 7.44E
The approximate molarity is
Explanation of Solution
The mole fraction of
The mass of
Molar mass of
The number of moles of
The number of moles of
Substitute the values of mass and molar mass in the above formula.
The mass of
Molar mass of
The number of moles of
Substitute the values of mass and molar mass in the above formula.
The mass of
Molar mass of
Substitute the values of mass and molar mass of
The mass of the solution will be,
The volume of solution is calculated by the formula,
The density of water is
Substitute the value of mass and density in the above formula.
Convert
Therefore, the volume of solution is
The molarity of the aqueous solution is calculated by the formula,
Substitute the values of number of moles of
The expression for Henry’s Law is shown below.
Where,
•
•
•
The standard pressure in Pascal’s is
The value of mole fraction is
Substitute the value of pressure and value of mole fraction in the above expression.
Therefore, the Henry’s law constant is
The Henry’s law constant is
Want to see more full solutions like this?
Chapter 7 Solutions
Physical Chemistry
- A 1.00 mol/kg aqueous sulfuric acid solution, H2SO4,freezes at 4.04 C. Calculate i, the vant Hoff factor,for sulfuric acid in this solution.arrow_forwardThe dispersed phase of a certain colloidal dispersion consists of spheres of diameter 1.0 102 nm. (a) What are the volume (V=43r2) and surface area (A = r2) of each sphere? (b) How many spheres are required to give a total volume of 1.0 cm3? What is the total surface area of these spheres in square meters?arrow_forward6-111 As noted in Section 6-8C, the amount of external pressure that must be applied to a more concentrated solution to stop the passage of solvent molecules across a semipermeable membrane is known as the osmotic pressure The osmotic pressure obeys a law similar in form to the ideal gas law (discussed in Section 5-4), where Substituting for pressure and solving for osmotic pressures gives the following equation: RT MRT, where M is the concentration or molarity of the solution. (a) Determine the osmotic pressure at 25°C of a 0.0020 M sucrose (C12H22O11) solution. (b) Seawater contains 3.4 g of salts for every liter of solution. Assuming the solute consists entirely of NaCl (and complete dissociation of the NaCI salt), calculate the osmotic pressure of seawater at 25°C. (c) The average osmotic pressure of blood is 7.7 atm at 25°C. What concentration of glucose (C6H12O6) will be isotonic with blood? (d) Lysozyme is an enzyme that breaks bacterial cell walls. A solution containing 0.150 g of this enzyme in 210. mL of solution has an osmotic pressure of 0.953 torr at 25°C. What is the molar mass of lysozyme? (e) The osmotic pressure of an aqueous solution of a certain protein was measured in order to determine the protein's molar mass. The solution contained 3.50 mg of protein dissolved in sufficient water to form 5.00 mL of solution. The osmotic pressure of the solution at 25°C was found to be 1.54 torr. Calculate the molar mass of the protein.arrow_forward
- Chemistry: Principles and PracticeChemistryISBN:9780534420123Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward MercerPublisher:Cengage LearningChemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage LearningChemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage Learning
- Chemistry & Chemical ReactivityChemistryISBN:9781337399074Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage LearningChemistry & Chemical ReactivityChemistryISBN:9781133949640Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage Learning