Homework Help: chemistry

Posted by chad on Tuesday, October 11, 2011 at 11:56am.

A sample of gold is at a initial temperature of 350 k. Once dropped into a coffe cup calorimeter of heat capacity 400 k^-1 it contains 50 g of water at 300 k. Specific heat capacity is 0.129 for gold and 4.18 for water. what is the final temp of all gold, coffee cup, and water.

chemistry - DrBob222, Tuesday, October 11, 2011 at 3:12pm
heat lost by Au + heat gained by water = 0

[mass Au x specific heat Au x (Tfinal-Tinitial)] + [mass H2O x specific heat H2O x (Tfinal-Tinitial)] = 0
Solve for Tfinal.

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