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Ammonium Nitrate Sometimes Is Used in Cold Packs Because Its

Question 57

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Ammonium nitrate sometimes is used in cold packs because its enthalpy of solvation in water is 21 kJ/mol. What is the minimum amount of ammonium nitrate (80.05 g/mol) that is needed to cool a 1.0 L soft drink (d 1.0 g/mL, specific heat 4.5 J g1 Ammonium nitrate sometimes is used in cold packs because its enthalpy of solvation in water is <font face= symbol ></font>21 kJ/mol. What is the minimum amount of ammonium nitrate (80.05 g/mol) that is needed to cool a 1.0 L soft drink (d <font face= symbol ></font> 1.0 g/mL, specific heat 4.5 J g<font face= symbol ><sup></sup></font><sup>1</sup> <font face= symbol ></font>) and its plastic bottle (heat capacity 50 J/K) from 30 to 5 . A) 540 g B) 320 g C) 110 g D) 430 g E) 250 g ) and its plastic bottle (heat capacity 50 J/K) from 30 Ammonium nitrate sometimes is used in cold packs because its enthalpy of solvation in water is <font face= symbol ></font>21 kJ/mol. What is the minimum amount of ammonium nitrate (80.05 g/mol) that is needed to cool a 1.0 L soft drink (d <font face= symbol ></font> 1.0 g/mL, specific heat 4.5 J g<font face= symbol ><sup></sup></font><sup>1</sup> <font face= symbol ></font>) and its plastic bottle (heat capacity 50 J/K) from 30 to 5 . A) 540 g B) 320 g C) 110 g D) 430 g E) 250 g to 5 Ammonium nitrate sometimes is used in cold packs because its enthalpy of solvation in water is <font face= symbol ></font>21 kJ/mol. What is the minimum amount of ammonium nitrate (80.05 g/mol) that is needed to cool a 1.0 L soft drink (d <font face= symbol ></font> 1.0 g/mL, specific heat 4.5 J g<font face= symbol ><sup></sup></font><sup>1</sup> <font face= symbol ></font>) and its plastic bottle (heat capacity 50 J/K) from 30 to 5 . A) 540 g B) 320 g C) 110 g D) 430 g E) 250 g .


A) 540 g
B) 320 g
C) 110 g
D) 430 g
E) 250 g

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