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Ionic Compound
Mass (g)
T i (°C )
Tf (°C)
âT (°C)
q (J)
âH (J/mol)
Calcium chloride
5g
22°C
34°C
+12°C
-251J
Ammonium nitrate
5g
22°C
16°C
-6°C
+125J
Magnesium Carbonate
2g
21°C
21°C
0°C
0
Sodium chloride
5g
21°C
20°C
-1
+21J
Cs (water) = 4.18 J/g-°C â¨, Density of water = 1g/mL â¨
Q) Calculate: âH (J/mol), for the four ionic compounds?
Ionic Compound | Mass (g) | T i (°C ) | Tf (°C) | âT (°C) | q (J) | âH (J/mol) |
Calcium chloride | 5g | 22°C | 34°C | +12°C | -251J | |
Ammonium nitrate | 5g | 22°C | 16°C | -6°C | +125J | |
Magnesium Carbonate | 2g | 21°C | 21°C | 0°C | 0 | |
Sodium chloride | 5g | 21°C | 20°C | -1 | +21J |
Cs (water) = 4.18 J/g-°C â¨, Density of water = 1g/mL â¨
Q) Calculate: âH (J/mol), for the four ionic compounds?
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Bunny GreenfelderLv2
6 Apr 2019
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