Chemistry: Equivalents and Osmoles

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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?

It dissociates into multiple particles Signup and view all the answers

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

Grams per liter Signup and view all the answers

What is the purpose of semipermeable membrane pressure?

To prevent solvent migration Signup and view all the answers

What is osmotic pressure equal to?

Semipermeable membrane pressure Signup and view all the answers

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

Toward the solute Signup and view all the answers

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

It prevents solvent migration Signup and view all the answers

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

Semipermeable membrane pressure is equal to osmotic pressure Signup and view all the answers

What is the purpose of osmotic pressure?

To prevent the solvent migration towards the solute Signup and view all the answers

What happens when osmotic pressure is applied to a solution?

The solvent migration towards the solute is prevented Signup and view all the answers

What is the definition of osmotic pressure?

The pressure necessary to prevent the solvent migration towards the solute Signup and view all the answers

What is the result of osmotic pressure on a solution?

The solvent migration towards the solute is prevented Signup and view all the answers

What is the role of osmotic pressure in biological systems?

To maintain the shape and structure of cells Signup and view all the answers

What is a common cause of hypovolemia?

Excessive vomiting Signup and view all the answers

What is a possible consequence of diarrhea?

Hypovolemia Signup and view all the answers

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

Burn injury Signup and view all the answers

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

Posterior pituitary gland Signup and view all the answers

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

Directly proportional Signup and view all the answers

What is a possible cause of dehydration?

Insufficient water intake Signup and view all the answers

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

Excessive vomiting Signup and view all the answers

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

It releases hormones based on osmolality Signup and view all the answers

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

It is directly proportional to osmolality Signup and view all the answers

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

Osmolality Signup and view all the answers