Answer:
![C=0.662(J)/(g\°C)](https://img.qammunity.org/2022/formulas/chemistry/college/qkfjfb1l5zj5xm5nk5dm8qnaz07bezw3m1.png)
Step-by-step explanation:
Hello!
In this case, since the heat removal when cooling down a body is computed via:
![Q=mC\Delta T](https://img.qammunity.org/2022/formulas/chemistry/college/rkcmvoej1gw7fxt9ffnmpsanhzqe6u8o8p.png)
Given the removed heat, mass and temperature change, we solve for the heat capacity of the metal as shown below:
![C=(Q)/(m\Delta T)](https://img.qammunity.org/2022/formulas/chemistry/college/xo2efrlejco4syc5xmjjp1ofy7iasx370z.png)
Thus, by plugging in we obtain:
![C=(-68.5J)/(4.5g*(25-48)\°C) \\\\C=0.662(J)/(g\°C)](https://img.qammunity.org/2022/formulas/chemistry/college/oluicvls3n4bvo8omh4fvg2rf5ig54lvbq.png)
Best regards!