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6. Chemical Quantities & Aqueous Reactions

Osmolarity

6. Chemical Quantities & Aqueous Reactions

Osmolarity

Multiple Choice
Which of the following solutions will have the highest concentration of bromide ions?
4668
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12
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Open Question
What is the concentration of K⁺ in 0.15 M of K₂S?
1051
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Multiple Choice
If the osmolarity of a cell is 0.3 osm, which of the following NaCl solutions is isosmotic to the cell?
72
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Open Question
What is the concentration of Cl^– ions in a 0.1 M solution of calcium chloride?
880
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Multiple Choice
Which of the following statements best describes osmolarity?
74
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Open Question
How many ions are present in a 25mL solution of 30mm (NH₄)₂CO₃?
1190
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Multiple Choice
A 2.26 g sample of a protein of unknown molecular weight was dissolved in enough water to produce 21.3 mL of solution. The solution was found to have an osmotic pressure of 2.45 torr at 25 °C. What is the molecular weight of the protein?
525
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Open Question
What is the molarity of cl− in each solution?
1464
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Multiple Choice
How many milligrams of nitride ions are required to prepare 820 mL of 0.330 M Ba₃N₂ solution?
3704
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9
rank
Open Question
Which will have the highest concentration of potassium ion
1047
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1
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Open Question
What is the molar concentration of sodium ions in a 0.350 m Na₃PO₄ solution?
1091
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Open Question
What is the concentration of K⁺ in 0.15 m of K₂S?
1391
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Open Question
What is the concentration of k+ ions in a 0.025 M K₂CO₃ solution assuming complete dissociation?
1006
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