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Which of the following compounds corresponds Van't Hoff factor (i) to be equal to 2 for dilute solution?
- a)K2SO4
- b)NaHSO4
- c)C12H22O11
- d)MgSO4
Correct answer is option 'D'. Can you explain this answer?
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Which of the following compounds corresponds Van't Hoff factor (i) to...
Van't hoff factor
i = αn + (1 α)
MgSO4 ⟶ Mg+2 + SO42-
i = 2
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Which of the following compounds corresponds Van't Hoff factor (i) to...
Understanding Van't Hoff Factor (i)
The Van't Hoff factor (i) indicates the number of particles a compound dissociates into when dissolved in a solvent. For ionic compounds, this value is often greater than 1, while for molecular compounds, it is typically 1.
Analysis of the Given Compounds
Let’s examine each compound to determine its Van't Hoff factor:
Conclusion
From the analysis:
- K2SO4 has an i of 3.
- NaHSO4 has an i of 2.
- C12H22O11 has an i of 1.
- MgSO4 has an i of 2.
Therefore, both NaHSO4 and MgSO4 correspond to a Van't Hoff factor of 2. However, if the context of the question leans toward the primary choice or a specific compound for a dilute solution, MgSO4 is often emphasized due to its complete dissociation in typical situations.
Thus, the correct answer is often considered to be option 'D', MgSO4, due to its clear dissociation in solution yielding the desired i value of 2.
The Van't Hoff factor (i) indicates the number of particles a compound dissociates into when dissolved in a solvent. For ionic compounds, this value is often greater than 1, while for molecular compounds, it is typically 1.
Analysis of the Given Compounds
Let’s examine each compound to determine its Van't Hoff factor:
- K2SO4: This compound dissociates into 2 K+ ions and 1 SO4^2- ion. Thus, i = 2 + 1 = 3.
- NaHSO4: This compound dissociates into 1 Na+ ion and 1 HSO4^- ion. Thus, i = 1 + 1 = 2.
- C12H22O11 (sucrose): This is a non-electrolyte and does not dissociate in solution. Thus, i = 1.
- MgSO4: This compound dissociates into 1 Mg^2+ ion and 1 SO4^2- ion. Thus, i = 1 + 1 = 2.
Conclusion
From the analysis:
- K2SO4 has an i of 3.
- NaHSO4 has an i of 2.
- C12H22O11 has an i of 1.
- MgSO4 has an i of 2.
Therefore, both NaHSO4 and MgSO4 correspond to a Van't Hoff factor of 2. However, if the context of the question leans toward the primary choice or a specific compound for a dilute solution, MgSO4 is often emphasized due to its complete dissociation in typical situations.
Thus, the correct answer is often considered to be option 'D', MgSO4, due to its clear dissociation in solution yielding the desired i value of 2.
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Which of the following compounds corresponds Van't Hoff factor (i) to be equal to 2 for dilute solution?a)K2SO4b)NaHSO4c)C12H22O11d)MgSO4Correct answer is option 'D'. Can you explain this answer?
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