I need help filling the rest of the table Data and Results Use the table below t

Question

I need help filling the rest of the table

Data and Results Use the table below to record your data and results. As a general rule, mass and moles should be expressed to two decimal places. All others should have one decimal place al 2 Mass of hot water,g Mass of cold water, g Initial temperature of cold water, Tc Initial temperature of hot water, Th Average temperature, Ta (Tc+Th)/2 Temperature at time O from graph To Heat lost by the hot water Heat gained by the cold water Heat gained by calorimeter in J Temperature change of the cold water in the calorimeter Heat capacity (C) of the calorimeter in J/oC Average heat capacity (C) of calorimeter in J/oC) 50 50 22.0 82.0 52.0 54.0 5852 6688 50 50 22.0 83.0 52.5 55.0 5852 6897 31.67 26.13 28.9

Explanation / Answer

Answering all the X marked

Heat Gained = Heat Lost (first Law of Thermodynamics)

Heat Gained By Calorimeter + Heat Gained by Cold Water = Heat Lost by Hot Water

Trial 1 : Heat Gained By Calorimeter = 5852-6688 = -836 J

Trial 2 : Heat Gained by Calorimeter = 5852-6897= - 1045 J

No of Moles = Mass / Molecular Weight

CaCl2 111g NH4Cl 53.5g 5g 10g 15g 5g 10g 15g Mass of Salt(g) 5.69 10.56 15.35 5.68 10.26 15.36 Moles 0.05 0.09 0.14 0.10 0.19 0.28

Related Questions

Navigate

• Browse (All)
• Browse I
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.