Answer to Question #258459 in General Chemistry for lei

Question

A 75.0 g piece of Ag metal is heated to 80.0 ^oC and dropped into 50.0 g of water at 23.2 ^oC. The final temperature of the Ag-H₂O mixture is 27.6 ^oC. What is the specific heat of silver?

 

Answer 1

the temperature change of the water is ( 27.6 ^oC - 23.2 ^oC )

=4.4^oC

Specific heat of water is approx 4186 J/kg/C

Heat absorbed by the water is 0.05kg x 4.4C x 4186j/kg/C = 920.9 J

Specific heat of silver is 920.9/(0.075 x 52.4)

=234.3^oC