A 50.0 g sample of unknown metal is heated to 127.1°C, then placed in a calorimeter containing 65.0 g of water. The temperature of water increases from 20.00°C to 22.50°C. The specific heat of water is 4.184 J/g·°C. 1.) What is the specific heat of the unknown metal (just give the number rounded to 3 decimal places):   2.) What is the identity of the unknown metal?

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Chapter6: Thermochemisty
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Problem 6.144QP: A piece of iron was heated to 95.4C and dropped into a constant-pressure calorimeter containing 284...
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A 50.0 g sample of unknown metal is heated to 127.1°C, then placed in a calorimeter containing 65.0 g of water. The temperature of water increases from 20.00°C to 22.50°C. The specific heat of water is 4.184 J/g·°C.

1.) What is the specific heat of the unknown metal (just give the number rounded to 3 decimal places):

 

2.) What is the identity of the unknown metal?

 

Aluminum = 0.900 J/g·°C
Gold = 0.130 J/g·°C
Iron = 0.444 J/g·°C
Lead = 0.160 J/g·°C
Silver = 0.240 J/g·°C
Tin = 0.210 J/g·°C
Zinc = 0.390 J/g·°C

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