You are given 10.0 grams of a mixture of NANO3 and KF. You dissolve this mixture in 100.0g of water and the temperature rises by 2.22°C. You know that the enthalpy of solution of NANO3 is +20.5 kJ/mol, and enthalpy of solution of KF is -17.7 kJ/mol. a) Estimate whether there are more moles of NaNO3 or KF in the mixture. Explain your reasoning in one sentence. b) Now calculate the mass of each compound in the mixture. You can assume that the specific heat capacity of the solution is 4.2 J/g°C.

You are given 10.0 grams of a mixture of NANO3 and KF. You dissolve this mixture in 100.0g of water and the temperature rises by 2.22°C. You know that the enthalpy of solution of NANO3 is +20.5 kJ/mol, and enthalpy of solution of KF is -17.7 kJ/mol. a) Estimate whether there are more moles of NaNO3 or KF in the mixture. Explain your reasoning in one sentence. b) Now calculate the mass of each compound in the mixture. You can assume that the specific heat capacity of the solution is 4.2 J/g°C.

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter13: The Chemistry Of Solutes And Solutions

Section: Chapter Questions

Problem 80QRT

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