Chemistry: Equivalents and Osmoles
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Questions and Answers

What is the mass of one equivalent of Na+?

  • 25g/L
  • 22g/L
  • 20g/L
  • 23g/L (correct)

    • What is the mass of one equivalent of Ca²?

  • 25g/L
  • 22g/L
  • 23g/L
  • 20g/L (correct)

    • What does an osmole (osm) represent?

  • The number of freely moving particles (correct)
  • The concentration of a solution
  • The volume of a solution
  • The number of moles of a substance

    • What happens when a mole of a substance is dissolved in a solution?

    <p>It dissociates into multiple particles (D)</p> Signup and view all the answers

    What is the unit of measurement for the mass of one equivalent of a substance?

    <p>Grams per liter (C)</p> Signup and view all the answers

    What is the purpose of semipermeable membrane pressure?

    <p>To prevent solvent migration (D)</p> Signup and view all the answers

    What is osmotic pressure equal to?

    <p>Semipermeable membrane pressure (B)</p> Signup and view all the answers

    What is the direction of solvent migration in relation to the solute?

    <p>Toward the solute (A)</p> Signup and view all the answers

    What is the effect of semipermeable membrane pressure on solvent migration?

    <p>It prevents solvent migration (C)</p> Signup and view all the answers

    What is the relationship between semipermeable membrane pressure and osmotic pressure?

    <p>Semipermeable membrane pressure is equal to osmotic pressure (D)</p> Signup and view all the answers

    What is the purpose of osmotic pressure?

    <p>To prevent the solvent migration towards the solute (B)</p> Signup and view all the answers

    What happens when osmotic pressure is applied to a solution?

    <p>The solvent migration towards the solute is prevented (D)</p> Signup and view all the answers

    What is the definition of osmotic pressure?

    <p>The pressure necessary to prevent the solvent migration towards the solute (D)</p> Signup and view all the answers

    What is the result of osmotic pressure on a solution?

    <p>The solvent migration towards the solute is prevented (B)</p> Signup and view all the answers

    What is the role of osmotic pressure in biological systems?

    <p>To maintain the shape and structure of cells (B)</p> Signup and view all the answers

    What is a common cause of hypovolemia?

    <p>Excessive vomiting (D)</p> Signup and view all the answers

    What is a possible consequence of diarrhea?

    <p>Hypovolemia (C)</p> Signup and view all the answers

    What can cause a person to lose a large amount of fluids?

    <p>Burn injury (B)</p> Signup and view all the answers

    What is the location of the gland where a certain hormone is stored and released?

    <p>Posterior pituitary gland (A)</p> Signup and view all the answers

    What is the relationship between the hormone released from the posterior pituitary gland and osmolality?

    <p>Directly proportional (A)</p> Signup and view all the answers

    What is a possible cause of dehydration?

    <p>Insufficient water intake (C)</p> Signup and view all the answers

    Which of the following can lead to a decrease in blood volume?

    <p>Excessive vomiting (B)</p> Signup and view all the answers

    What is the role of the posterior pituitary gland in regulating hormone secretion?

    <p>It releases hormones based on osmolality (C)</p> Signup and view all the answers

    What is the characteristic of the hormone released from the posterior pituitary gland?

    <p>It is directly proportional to osmolality (C)</p> Signup and view all the answers

    What determines the amount of hormone released from the posterior pituitary gland?

    <p>Osmolality (A)</p> Signup and view all the answers

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