A hot 101.7101.7 g lump of an unknown substance initially at 184.9184.9 °C is placed in 35.0 mL of water initially at 25.0 °C and the system is allowed to reach thermal equilibrium. The final temperature of the system is 86.486.4 °C. Substance Specific heat (J/(g·°C)) aluminum 0.897 graphite 0.709 rhodium 0.243 titanium 0.523 tungsten 0.132 zinc 0.388 water 4.184 Using this information and the specific heat values for several metals in the table, identify the unknown substance. Assume no heat is lost to the surroundings. a) zinc b) graphite c) titanium d) tungsten e) rhodium f) aluminum
A hot 101.7101.7 g lump of an unknown substance initially at 184.9184.9 °C is placed in 35.0 mL of water initially at 25.0 °C and the system is allowed to reach thermal equilibrium. The final temperature of the system is 86.486.4 °C. Substance Specific heat (J/(g·°C)) aluminum 0.897 graphite 0.709 rhodium 0.243 titanium 0.523 tungsten 0.132 zinc 0.388 water 4.184 Using this information and the specific heat values for several metals in the table, identify the unknown substance. Assume no heat is lost to the surroundings. a) zinc b) graphite c) titanium d) tungsten e) rhodium f) aluminum
Chemistry
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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter6: Thermochemistry
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Problem 66E: In a coffee-cup calorimeter, 100.0 mL of 1.0 M NaOH and 100.0 mL of 1.0 M HCI are mixed. Both...
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A hot 101.7101.7 g lump of an unknown substance initially at 184.9184.9 °C is placed in 35.0 mL of water initially at 25.0 °C and the system is allowed to reach thermal equilibrium. The final temperature of the system is 86.486.4 °C.
Substance | Specific heat (J/(g·°C)) |
---|---|
aluminum | 0.897 |
graphite | 0.709 |
rhodium | 0.243 |
titanium | 0.523 |
tungsten | 0.132 |
zinc | 0.388 |
water | 4.184 |
Using this information and the specific heat values for several metals in the table, identify the unknown substance. Assume no heat is lost to the surroundings.
a) zinc
b) graphite
c) titanium
d) tungsten
e) rhodium
f) aluminum
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