A 50.0-g piece of metal at 80.0 °C is placed in 100 g of water at 22.0 °C contained in a calorimeter like that shown in Figure 5.12. The metal and water come to the same temperature at 24.6 °C. Water has a heat capacity of 4.18 J/g°C. a. How much heat did the metal give up to the water?   b. What is the specific heat capacity of the metal?   c. If it is one of the substances found in Table 5.1, what is its likely identity?

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A 50.0-g piece of metal at 80.0 °C is placed in 100 g of water at 22.0 °C contained in a calorimeter like that shown in Figure 5.12. The metal and water come to the same temperature at 24.6 °C. Water has a heat capacity of 4.18 J/g°C.
a. How much heat did the metal give up to the water?
 
b. What is the specific heat capacity of the metal?
 
c. If it is one of the substances found in Table 5.1, what is its likely identity?
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Specific Heats of Common Substances at 25 °C and 1 bar
Substance
Symbol (state)
Specific Heat (J/g °C)
water vapor
H20(g)
1.864
nitrogen
N2(g)
1.040
air
1.007
охудen
O2(g)
0.918
aluminum
Al(s)
0.897
carbon dioxide
CO2(9)
0.853
argon
Ar(g)
0.522
iron
Fe(s)
0.449
copper
Cu(s)
0.385
lead
Pb(s)
0.130
gold
Au(s)
0.129
silicon
Si(s)
0.712
Table 5.1
Transcribed Image Text:Specific Heats of Common Substances at 25 °C and 1 bar Substance Symbol (state) Specific Heat (J/g °C) water vapor H20(g) 1.864 nitrogen N2(g) 1.040 air 1.007 охудen O2(g) 0.918 aluminum Al(s) 0.897 carbon dioxide CO2(9) 0.853 argon Ar(g) 0.522 iron Fe(s) 0.449 copper Cu(s) 0.385 lead Pb(s) 0.130 gold Au(s) 0.129 silicon Si(s) 0.712 Table 5.1
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