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13 Dec 2019

ALUMINUM HAS A SPECIFIC HEAT CAPACITY OF 0.9 J/g C and water has a specific heat capacity of 4.2 J/gC. How much energy is transferred from a piece of hot aluminum that is dropped in a calorimeter containing 150g of water at 20C if final temperature of the water in calorimeter is 24 C?

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Jean Keeling
Jean KeelingLv2
17 Dec 2019

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Related questions

Info for part 1: Determining the heat capacity of the calorimeter

Mass of the empty Styrofoam cups and cover: 30.21 g

Mass of the cups, cover and 70 ml cool water: 95.21 g

Mass of the cups, cover, 70 ml water and 30 ml hot water: 127.41 g

Initial temperature of the hot water (boiling bath): 99.5 C

Initial temperature of the cool water in the cups: 18 C

Final temperature of the calorimeter and the added hot water: 43 C

Calulations: Please show work I am so confused

a)Mass of the hot water (mhot) (g)

b)Temperature change of the hot water (J)

c)Heat lost by the hot water (J)

d)Mass of the cool water (mcool) J/C

e)Temperature change of the cool water J/C

f)Heat absorbed by the cool water

g) Heat gained by the calorimeter

h)Heat capacity of the calorimeter

i)Average Heat capacity of the calorimeter from both trials

J)Initial temperature of the hot metal (boiling bath): 30.21 g

K) Initial temperature of the cool water in the cups: 131.07 g

L)Final temperature of the calorimeter and the added hot metal: 84.67 g

Part 2 info: determining the heat capacity of a metal

Mass of the empty Styrofoam cups and cover: 30.21 g

Mass of the cups, cover and 100 ml water:131.07 g

Mass of the metal (mm):84.67 g

Initial temperature of the hot metal (boiling bath): 99.3 C

Initial temperature of the cool water in the cups: 21.3 C

Final temperature of the calorimeter and the added hot metal: 27.4 C

Calculations :( (metal is nickel)

-Mass of the cool water (mcool)

-Temperature change of the cool water

-Heat absorbed by the cool water
-Average heat capacity of the calorimeter (Hcal)

-Heat gained by the calorimeter

-Heat lost by metal

-Temperature change of the hot metal

-Specific Heat of metal

-Average Specific Heat of metal

-percent error

Please help me with this quesition with clear expain.Thanks


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