Question

A mass of copper at 25.50 C is placed in a calorimeter filled with 236 g of hot water at 38.00°C. The final temperature of the water is 36.90° C. What is the mass of copper in grams? .

Answer 1

The mass of the copper is 249.2 grams.

Step-by-step explanation:

To calculate the mass of the copper, we can use the equation Q = mCΔT, where Q is the heat transferred, m is the mass, C is the specific heat capacity, and ΔT is the change in temperature.

First, we need to calculate the heat transferred from the copper to the water using the equation Q = mcΔT, where c is the specific heat capacity of water. We can rearrange the equation to solve for m:

m = Q / cΔT

Plugging in the values given in the question, we have:

m = (236g)(4.18 J/g°C)(36.90°C - 38.00°C) / (0.39 J/g°C)

m = 249.2g

Therefore, the mass of the copper is 249.2 grams.