Please help complete the table. Based on the experiment that was conducted. The
ID: 570399 • Letter: P
Question
Please help complete the table. Based on the experiment that was conducted. The unknown metal was placed in 40 mL of water.
Trial 1: Time (minutes)
Trial 1:
Temp (°C)
Trial 2: Time (minutes)
Trial 2:
Temp (°C)
Trial 3: Time (minutes)
Trial 3:
Temp (°C)
Metal: Initial
102
Metal: Initial
99
Metal: Initial
98
Calorimeter: initial
32
Calorimeter: initial
34
Calorimeter: initial
29
Calorimeter + Metal: 1 min
36
Calorimeter + Metal: 1 min
39
Calorimeter + Metal: 1 min
31
Calorimeter + Metal: 2 min
42
Calorimeter + Metal: 2 min
40
Calorimeter + Metal: 2 min
36
Calorimeter + Metal: 3 min
45
Calorimeter + Metal: 3 min
42
Calorimeter + Metal: 3 min
39
Calorimeter + Metal: 4 min
46
Calorimeter + Metal: 4 min
44
Calorimeter + Metal: 4 min
41
Calorimeter + Metal: 5 min
48
Calorimeter + Metal: 5 min
46
Calorimeter + Metal: 5 min
43
DT for water
DT for water
DT for water
DT for metal
DT for metal
DT for metal
Mass of water: 40 (g)
Specific Heat capacity of water (J/g°C):
Calculation for Qwater:
Mass of metal (g): 19
Qmetal = - Qwater =
Calculation for Csp of metal (Trial 1):
Calculation for Csp of metal (Trial 2):
Calculation for Csp of metal (Trial 3):
Average Csp of metal:
Identity of Metal (extra credit):
*include evidence/explanation below table
Trial 1: Time (minutes)
Trial 1:
Temp (°C)
Trial 2: Time (minutes)
Trial 2:
Temp (°C)
Trial 3: Time (minutes)
Trial 3:
Temp (°C)
Metal: Initial
102
Metal: Initial
99
Metal: Initial
98
Calorimeter: initial
32
Calorimeter: initial
34
Calorimeter: initial
29
Calorimeter + Metal: 1 min
36
Calorimeter + Metal: 1 min
39
Calorimeter + Metal: 1 min
31
Calorimeter + Metal: 2 min
42
Calorimeter + Metal: 2 min
40
Calorimeter + Metal: 2 min
36
Calorimeter + Metal: 3 min
45
Calorimeter + Metal: 3 min
42
Calorimeter + Metal: 3 min
39
Calorimeter + Metal: 4 min
46
Calorimeter + Metal: 4 min
44
Calorimeter + Metal: 4 min
41
Calorimeter + Metal: 5 min
48
Calorimeter + Metal: 5 min
46
Calorimeter + Metal: 5 min
43
DT for water
DT for water
DT for water
DT for metal
DT for metal
DT for metal
Mass of water: 40 (g)
Specific Heat capacity of water (J/g°C):
Calculation for Qwater:
Mass of metal (g): 19
Qmetal = - Qwater =
Calculation for Csp of metal (Trial 1):
Calculation for Csp of metal (Trial 2):
Calculation for Csp of metal (Trial 3):
Average Csp of metal:
Identity of Metal (extra credit):
*include evidence/explanation below table
Explanation / Answer
Density of water = 1 grams/ ml., Specific heat capacity of water = 4.18 Joules / g 0 C
Calculation of Qwater = heat gained by water = mass of water * specific heat of water * (Final temperature - initial temperature)
Trial 1: Initial temperature of water = 32 0 C, Final temperature = 48 0 C (after 5 minutes)
Qwater = 40 grams * 4.18 Joules / g 0 C * (48-32) 0 C = 2675.2 Joules
Trial 2: Qwater = 40 grams * 4.18 Joules / g 0 C * (46-34) 0 C = 2006.4 Joules
Trial 3: Qwater = 40 grams * 4.18 Joules / g 0 C * (43-29) 0 C = 2340.8Joules
Average value of Qwater= (2675.2 + 2006.4 +2340.8) / 3 Joules = 2340.8 Joules
Heat released by metal = Qmetal = - Qwater = -2340.8 Joules
Heat released by metal = Qmetal = mass of metal * specific heat of water (Csp) * (Final temperature - initial temperature)
Trial 1: Qmetal = 19 grams * Csp Joules/ grams 0 C * ( 48-102) 0 C = -1026 * Csp Joules
-1026* Csp = - Qwater = -2675.2, Csp = 2.60 Joules/ grams 0 C
Trial 2: Qmetal = 19 grams * Csp Joules/ grams 0 C * ( 46-99) 0 C = -1007 * Csp Joules
-1007 * Csp = - 2006.4, Csp = 1.99 Joules/ grams 0 C
Trial 3: Qmetal = 19 grams * Csp Joules/ grams 0 C * ( 43-98) 0 C = -1045 * Csp Joules
-1045 * Csp = -2340.8, Csp = 2.24 Joules/ grams 0 C
Average value of Csp = (2.60 + 1.99 + 2.24) Joules/ grams 0 C = 2.28 Joules/ grams 0 C
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.