Mass using Q=m*C*delta T

[Knfoster]

Homework Statement

An aluminum cup contains 217g of water at 21.2oC. A 404g sample of silver at an initial temperature of 80.8oC is placed in the water. A 41.0g copper stirrer is used to stir the mixture until it reaches its final equilibrium temperature of 25.7oC. Calculate the mass of the aluminum cup.

Homework Equations

Q=mCdeltaT
heat lost=heat gained

The Attempt at a Solution

Could someone please help me set the problem up w/o numbers. Thanks.

 

[Redbelly98]

You have the right equations to work with, maybe listing a few facts will help get you going:

Every object will end up at the final temperature of 25.7C.

Each object either loses heat, or gains heat. That tells you on which side of the heat lost=heat gained equation each object belongs.

Presumably the copper stirrer also starts out at 21.2C.