What is/are the purpose(s) of the Styrofoam cups in this experiment? What are so

Question

What is/are the purpose(s) of the Styrofoam cups in this experiment? What are some assumptions that we make during this experiment in order to calculate the enthalpy of formation of ammonium sulfate? Calculate the mass of the solution used if a student added 35.569 grams of ammonium sulfate to enough water to give 80.0 mL of solution. The density of the solution was 1.00 gm L. Show your work. How many significant figures should your answer have? For the neutralization reaction in Part 1 of this experiment, calculate the number of moles of each reactant and then identify, with an explanation, the limiting reactant when 25.0 mL of 2.085 M H_2SO_4(aq) are mixed with 50.0 mL of 1.873 M NH_3 (aq). Show your work with the correct units and number of significant figures. Using data from another experiment, a student identified the limiting reactant for the neutralization reaction between sulfuric acid and aqueous ammonia as described above (in Question 4) and calculated the amount of ammonium sulfate produced to be 0.00568 moles. She measured the beat (i.e., Q) of the reaction to be an exothermic 47.3 J. In kJ/mol, calculate the enthalpy change for this reaction. Show your work with the correct units and significant figures.

Explanation / Answer

The purpose of the Styrofoam cups in this experiment is as follows:

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