1. Calculate the heat lost or gained by the water using the values you have in Table 1 and the specific heat capacity value for water listed in Table 3 (c = 1 cal/g*°C) for each trial (each Object data set).  Record this value in Table 2.  You can record all positive values for Qwater in your table.  Show your work for at least one Qwater calculation.

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1. Calculate the heat lost or gained by the water using the values you have in Table 1 and the specific heat capacity value for water listed in Table 3 (c = 1 cal/g*°C) for each trial (each Object data set).  Record this value in Table 2.  You can record all positive values for Qwater in your table.  Show your work for at least one Qwater calculation.

2. Knowing that heat lost is equal to heat gained.  Record the heat gained or lost by the unknown object in Table 2.  You can record all positive values for Qobject in your table.

3.  Now that you know the heat lost or gained by the unknown object, calculate the specific heat, c, of the object.   Record this value in Table 2.  Show your work for at least one cobject calculation. 

4.  Identify the substance of the unknown object based on the specific heat capacity value you just calculated and Table 3.  Write the substance for each unknown object in Table 2.

 

please please help this is so confusing and I dont know how to do it...I emailed my teacher but he hasnt gotton back to me yet and I need help!! please help me... thank you so so much !!

 

Table 1,2,3 are on the pictures posted ..... table 3 is below table 2 (all tables are labeled ontop 

Table 2: Determination of specific heat capacities of unknown materials
Qwater
Qobject
Units:
Cobject
Units:
Identify
Substance
Object
Units:
1
2
3
4
Table 3: Specific heat capacities (c) of various substances
substance
c (cal/g/°C)
substance
c (cal/g/°C)
substance
c (cal/g/°C)
uranium
0.0277
brass
0.0908
titanium
0.125
lead
0.0308
сорper
0.0920
graphite
0.170
platinum
0.0318
zinc
0.0925
granite
0.189
tin
0.0542
iron
0.108
glass
0.201
silver
0.0557
steel
0.111
liquid water
1.00
Transcribed Image Text:Table 2: Determination of specific heat capacities of unknown materials Qwater Qobject Units: Cobject Units: Identify Substance Object Units: 1 2 3 4 Table 3: Specific heat capacities (c) of various substances substance c (cal/g/°C) substance c (cal/g/°C) substance c (cal/g/°C) uranium 0.0277 brass 0.0908 titanium 0.125 lead 0.0308 сорper 0.0920 graphite 0.170 platinum 0.0318 zinc 0.0925 granite 0.189 tin 0.0542 iron 0.108 glass 0.201 silver 0.0557 steel 0.111 liquid water 1.00
Table 1: Calorimetry Data
Object #1
Object #2
Object #3
Object #4
Mass of Object
Units: g
200
200
200
200
Mass of Water
Units: g
900
900
900
900
Initial Water
Temperature
Units: °C
30
30
30
Initial Object
Temperature
Units: °C
98
100
95
90
Final Temperature
Units: °C
30.45
32.84
31.93
31.18
Temperature
Change
- Water
Units: °C
Temperature
Change – Object
Units: °C
30
Transcribed Image Text:Table 1: Calorimetry Data Object #1 Object #2 Object #3 Object #4 Mass of Object Units: g 200 200 200 200 Mass of Water Units: g 900 900 900 900 Initial Water Temperature Units: °C 30 30 30 Initial Object Temperature Units: °C 98 100 95 90 Final Temperature Units: °C 30.45 32.84 31.93 31.18 Temperature Change - Water Units: °C Temperature Change – Object Units: °C 30
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