Academic Integrity: tutoring, explanations, and feedback — we don’t complete graded work or submit on a student’s behalf.

Sapling Learning this question has been Pamela Mills at City University of New Y

ID: 540876 • Letter: S

Question


Sapling Learning this question has been Pamela Mills at City University of New York (CUNY by Lehman Coll In a constant-pressure calorimeter, 50.0 mL of 0.340 M Ba(OH)2 was added to 50.0 mL of 0.680 M HCL. The reaction caused the temperature of the solution to rise from 23.05 to 27.68 °C. If the solution has the same density and specific heat as water, what is heat absorbed by the solution? Assume that the total volune is the sum of the individual volumes. (And notice that the answer is in kJ) Number k.J 2 Tools x 10

Explanation / Answer

mass of the mixture = v*d = (50+50)*1 = 100 g

specific heat of water = s = 4.184 j/g.c

DT = 27.68 - 23.05 = 4.63

heat absorbed by the mixture = m*s*DT

                  = 100*4.184*4.63

                  = 1937.2 joule

                  = 1.94 kj

Hire Me For All Your Tutoring Needs
Integrity-first tutoring: clear explanations, guidance, and feedback.
Drop an Email at
drjack9650@gmail.com
Chat Now And Get Quote