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The dissolution of in water is endothermic, with .If you were to prepare a 1.00 m solution of beginning with water at 25 oC, what would the final temperature of the solution be in oC? Assume that specific heats of both pure water and solution are the same, .

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Related questions

Magnesium sulfate is often used in first-aid hot packs, giving off heat when dissolved in water. A coffee-cup calorimeter at 25 oC contains 15.0 mL of water at 25 oC. A 2.00 g sample of is dissolved in the water and 1.51 kJ of heat are evolved. You may make the following assumptions about the solution: volume = 15.0 mL, density = 1.00 g mL-1, specific heat = 4.18 J g-1 oC-1.

(a) What is the balanced equation for the dissolution process?

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(d) What is the final temperature of the solution

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A "coffee-cup" calorimetry experiment is run for the dissolution of 2.5 g of lithium nitrate placed into 97.2 mL of water. The temperature of the solution is initially at 23.5 oC. After the reaction takes place, the temperature of the solution is 28.3 oC.

1.) For this process, what is the system and what is the surroundings?

2.)Continuing with the same experiment as in question 1, is the system exothermic or endothermic? How can you tell?

student Jorge performs an experiment in which he adds 11.40 g KNO3 to 63.80 mL of deionized water in a coffee cup calorimeter. He calculates the enthalpy change of the solution for the process to be +1818.31 J. This value can be expressed as the molar enthalpy change of dissolution for KNO3, in kJ/mol. What is Jorge's molar enthalpy change of dissolution (kJ/mol)? Express your response to two digits after the decimal.

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student Sarah is measuring the heat of dissolution of KNO3 in water. She adds 2.81 g of solid KNO3 to 41.75 mL of deionized water in a coffee cup calorimeter (mass of the coffee cups + the stir bar = 20.32 g). The initial temperature of the water is 56.33 oC, and the temperature of the solution after the dissolution process is complete is 11.52 oC. Assuming the specific heat of the solution is the same as that of pure water (4.184 J/g-K), what is the heat of solution for the dissolution process in J (Joules)?

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