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## Homework Statement

A copper sample whose mass mc is 75 g is heated in a laboratory oven to a temperature of 312 degrees Celsius. The copper is then dropped into a glass beaker containing mass mw = 220 g of water. The effective heat capacity of the beaker is 190 J/K. The initial temperature of the water and beaker is 12 degrees Centigrade. What's the common final temperature of the copper, glass, and water?

## Homework Equations

Q = mcΔT

(mw)(cw)(ΔTw) = (mc)(cc)(ΔTc)

## The Attempt at a Solution

I tried substituting the given values into the equation but I was confused about what to do with the heat capacity of the beaker.