If 1 mole of NaCl is dissolved in 1 kg of water, what is the expected van 't Hoff factor (i)?
Practice Questions
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If 1 mole of NaCl is dissolved in 1 kg of water, what is the expected van 't Hoff factor (i)?
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NaCl dissociates into 2 ions (Na+ and Cl-), so the van 't Hoff factor (i) is 2.
Questions & Step-by-step Solutions
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Q
Q: If 1 mole of NaCl is dissolved in 1 kg of water, what is the expected van 't Hoff factor (i)?
Solution: NaCl dissociates into 2 ions (Na+ and Cl-), so the van 't Hoff factor (i) is 2.
Steps: 6
Step 1: Understand what a mole is. A mole is a unit that measures the amount of a substance. 1 mole of NaCl means we have a specific number of NaCl molecules.
Step 2: Know what NaCl is. NaCl is table salt, and when it dissolves in water, it breaks apart into its ions.
Step 3: Identify the ions produced by NaCl. When NaCl dissolves, it separates into two ions: one sodium ion (Na+) and one chloride ion (Cl-).
Step 4: Count the total number of particles. Since NaCl produces 2 ions when it dissolves, we have 2 particles for every formula unit of NaCl.
Step 5: Define the van 't Hoff factor (i). The van 't Hoff factor (i) is the number of particles that a solute breaks into when it dissolves in a solution.
Step 6: Conclude the value of i. Since NaCl produces 2 ions, the van 't Hoff factor (i) for NaCl is 2.
