A) What is the final temperature based on the calorimetric run? B) If the total

Question

A) What is the final temperature based on the calorimetric run?

B) If the total mass of the solution was 35.4 g and the heat capacity of the solution is the same as water (4.1801 J/g·°C), what is the value of q for the run?

C) What is the value of q for the reaction?

Time (s) Temperature (OC) 60. 20.7 30 20.7 30 55.8 55.0 60. 90. 54.5 120. 54.2 150 53.9 180 53.7 210. 53.5 53.3 240. 270. 53.2 53.1 300. 52.9 330 360. 52.8 390. 52.7 420. 52.7 450 52.6 480. 52.5 510. 52.4 540 52.4 570 52.3 600. 52.2

Explanation / Answer

A) Final temperature based on the calorimetric run = 52.2 - 20.7 = 31.5 C

B) Total mass of the solution = M = 35.4 g

    Heat capacity of the solution = 4.1801 J/g C

   The value of   Q = M x C x ( T2 - T1 )

                          = 35.4 x 4.1801 x 3

                         = 443.92 J

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