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A 30.5 g sample of copper at 99.8 °C is carefully placed into an insulated container containing 207 g of water at 18.5 °C. Ca
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Answer #1

Here, we're setting the heat values derived given the equation:

q=mCsΔT

equal to each other, as such,

qwater+q(Cu)=0
∴qwater=−q(Cu)

Before we start, I will assume the density of water is 1.00 g/mL.

207g*4.184Jg⋅°C⋅(Tf−18.5°C)=−[30.5g*0.385Jg⋅°C⋅(Tf−99.8°C)]

866.08 (Tf) -16022.62 = -11.74 (Tf)+1171.85

877082 (Tf) = 17194.27

Tf=19.58°C Ans.

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