Increasing Partial Pressure of Gas Above a Solution
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Questions and Answers

What is the term used to describe the mutual solubility of components in liquid-liquid systems?

  • Miscibility (correct)
  • Adhesiveness
  • Cohesiveness
  • Solubilization

    • What does Henry's law state?

  • The concentration of dissolved gas is directly proportional to the partial pressure of the gas. (correct)
  • The concentration of dissolved gas is inversely proportional to the partial pressure of the gas.
  • The concentration of dissolved gas is equal to the total pressure above the solution.
  • The concentration of dissolved gas is not affected by the partial pressure of the gas.

    • In completely miscible liquids, what is the relationship between adhesive and cohesive forces?

  • Adhesive forces = cohesive forces
  • Adhesive forces and cohesive forces are irrelevant
  • Adhesive forces > cohesive forces (correct)
  • Adhesive forces < cohesive forces

    • How does an increase in partial pressure affect the solubility of a slightly soluble gas in a solvent?

    <p>Increases solubility</p> Signup and view all the answers

    Which pair represents an example of completely miscible liquids?

    <p>Water + Alcohol</p> Signup and view all the answers

    What happens if the partial pressure of a gas above a liquid is decreased?

    <p>Decreases solubility</p> Signup and view all the answers

    What happens in partially miscible liquids systems?

    <p>They separate into two layers, each containing some of the other liquid</p> Signup and view all the answers

    Which term describes the occurrence when cohesive forces between like molecules are greater than adhesive forces between different molecules?

    <p>Partial Miscibility</p> Signup and view all the answers

    Which factor determines the solubility coefficient in Henry's law?

    <p>Partial pressure of the gas above the solution</p> Signup and view all the answers

    How does chemical reaction affect the solubility of gases in liquids?

    <p>Has no effect on solubility</p> Signup and view all the answers

    What characterizes completely immiscible liquids?

    <p>They do not mix at any proportion, forming two separate layers</p> Signup and view all the answers

    What is the role of electrolytes in affecting solubility?

    <p>Increase solubility</p> Signup and view all the answers

    What causes salting out in solutions?

    <p>Attraction of salt ions for water molecules</p> Signup and view all the answers

    Which gases deviate from Henry's law due to their chemical reaction with water?

    <p>Hydrogen chloride, ammonia, and carbon dioxide</p> Signup and view all the answers

    What does carbon dioxide react with water to form?

    <p>Carbonic acid (H2CO3)</p> Signup and view all the answers

    Which type of solubility usually causes problems for pharmacists during drug formulation?

    <p>Immiscible liquids</p> Signup and view all the answers

    How does the solubility of gases like hydrogen chloride differ from gases like oxygen?

    <p>Chemical reaction with water</p> Signup and view all the answers

    What contributes to the overall solubility of carbon dioxide in water?

    <p>Bicarbonate ions (HCO3-)</p> Signup and view all the answers

    What is the definition of solubility of gas in liquid?

    <p>It is the maximum amount of gas that can dissolve in a given amount of solvent at a specified temperature and pressure.</p> Signup and view all the answers

    What happens when the concentration of dissolved gas in a liquid reaches a certain level?

    <p>The system is said to be in equilibrium.</p> Signup and view all the answers

    Which of the following examples illustrates solubility of gas in liquid?

    <p>Dissolving carbon dioxide in water</p> Signup and view all the answers

    At what point is a system considered to be in equilibrium for solubility of gas in liquid?

    <p>When the rate of gas molecules leaving the liquid equals the rate entering it.</p> Signup and view all the answers

    How is solubility of gas in liquid affected by temperature and pressure?

    <p>Both temperature and pressure increase solubility.</p> Signup and view all the answers

    Which type of gas serves as a propellant in aerosol products and dissolves under pressure?

    <p>Carbon dioxide</p> Signup and view all the answers

    What happens to the solubility of a gas in a liquid when the temperature increases?

    <p>Decreases</p> Signup and view all the answers

    How can the partial pressure of gas above a solution be increased in a closed container?

    <p>Injecting more gas into the container</p> Signup and view all the answers

    What is the effect of adding electrolytes to a solution on the solubility of gas in water?

    <p>Decreases</p> Signup and view all the answers

    Why should a pharmacist be cautious when opening containers of gaseous solutions in warm climates?

    <p>To prevent the liberation of dissolved gas that may cause bursting</p> Signup and view all the answers

    What causes bubbles to form when a carbonated beverage is opened?

    <p>Decrease in pressure</p> Signup and view all the answers

    In salting out, what is responsible for decreasing the solubility of gas in water?

    <p>Electrolytes</p> Signup and view all the answers

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