Chemistry
NULL
Medium
Question
Among the following aqueous solutions, which would show the highest boiling point elevation?
A
0.20 m glucose
B
0.20 m NaCl
C
0.15 m CaCl2
✓ Official correct answer
D
0.25 m sucrose
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A
0.20 m glucose
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B
0.20 m NaCl
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C
0.15 m CaCl2
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D
0.25 m sucrose
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Explanation
Comparing effective particle molality (i×m), 0.15m CaCl2 (i=3, giving 0.45) produces the greatest boiling point elevation among these options, higher than 0.20m NaCl (0.40), 0.25m sucrose (0.25), or 0.20m glucose (0.20).
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