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nignag [31]
3 years ago
15

Which of the following aqueous solutions has the highest boiling point?A. 1.25 M Ca(NO3)2B. 1.25 M KNO3C. 1.25 M CH3OHD. 2.50 M

C6H12O6E. None of the above (all have the same boiling point)
Chemistry
1 answer:
Drupady [299]3 years ago
5 0

Answer:

Ca(NO3)2 has the highest boiling point ( option A)

Explanation:

Step 1: Data given

A. 1.25 M Ca(NO3)2

B. 1.25 M KNO3

C. 1.25 M CH3OH

D. 2.50 M C6H12O6

Step 2: Calculate highest boiling point

The boiling point depends on the van't Hoff factor

This shows the particles produced when the substance is dissolved. For non-electrolytes dissolved in water, the van' t Hoff factor is 1.

Ca(NO3)2 → Ca^2+ + 2NO3- → Van't Hoff factor = 3

KNO3 → K+ + NO3- → Van't Hoff factor = 2

CH3OH is a non-elektrolyte → Van't Hoff factor = 1

C6H12O6 is a non-elektrolyte → Van't Hoff factor = 1

Ca(NO3)2 has the highest boiling point

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he salts which are soluble in water are designated by symbol (aq), those in solid form are represented by (s), those in liquid form are represented by (l) and those in gaseous form are represented by (g) after their chemical formulas.

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Mg(OH)_2(s)+2HCl(aq)\rightarrow MgCl_2(aq)+H_2O(l)

e) magnesium chloride is melted and electrolyzed metal and diatomic chlorine gas.

MgCl_2(l)\rightarrow Mg(l)+Cl_2(g)

4 0
3 years ago
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