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How many moles of NH4NO3(s) must be dissolved in water so that 73.0 kJ of heat is absorbed from the water? (The molar heat of solution of NH4NO3 is 25.7 kJ/mol.)
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How many moles of NH4NO3(s) must be dissolved in water so that 73.0 kJ of heat is absorbed from the water? (The molar heat of solution of NH4NO3 is 25.7 kJ/mol.)

User Abhyudaya Sharma
by
8.1k points

2 Answers

5 votes

Answer:

2.84 mol

Step-by-step explanation:

User Flogo
by
8.1k points
3 votes
25 kj absorbed by dissolving 1 mole of NH4NO3

1kj is absorbed by dissolving = 1/25.7 = 0.03891 moles
what about 73 kj absorbed by dissolving

0.03891 x73= 2.8404 moles

User KevinKirkpatrick
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7.6k points
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