6. Chemical Quantities & Aqueous Reactions

Osmolarity

Multiple Choice
0.302 grams of an antibiotic was dissolved in enough water at 23.6°C to make 500.0 mL of solution. The solution has an osmotic pressure of 8.34 mm Hg. What is the molar mass of the antibiotic?
Open Question
Which of the following will have the highest concentration of potassium ion?
2
views
Multiple Choice
Select the correct statement about osmolarity.
Multiple Choice
Which of the following statements correctly describes the osmolarity of mammalian urine?
Multiple Choice
Which ion is the greatest determinant of intracellular osmolarity and cell volume?
Open Question
How many grams of CaCl₂ (molar mass = 111g/mol) are needed to prepare 100. mL of 0.100 M Cl⁻(aq) ions?
1
views
Multiple Choice
0.0201 g of aspirin is dissolved in enough water to produce a 100.0 mL solution. The osmotic pressure of this solution is 0.0271 atm at 301 K. Aspirin has a van't Hoff factor of 1. Determine the molar mass of aspirin.
Multiple Choice
Which term describes a solution that has the same solute concentration as another solution?
1
views
Multiple Choice
What is the osmolarity of a 0.7 m KNO_3 solution, assuming complete dissociation?
Open Question
What is the molarity of no3− in each solution?
1
views
Multiple Choice
Dehydration can lead to ____________ blood osmolarity.
Multiple Choice
Which of the following best describes osmolality?
Open Question
What is the concentration of K⁺ in 0.15 M of K₂S?
81
views
Multiple Choice
The high osmolarity of the renal medulla is maintained by which of the following?
Multiple Choice
How many bromide ions are present in 65.5 mL of 0.210 M GaBr₃solution?

7
views