Answer:
![C=0.152(J)/(g\°C)](https://img.qammunity.org/2022/formulas/chemistry/college/twi5pavhbc1eoelowltoodrgbshh23mu91.png)
Step-by-step explanation:
Hello!
In this case, when doing calorimetry problems, we need to use the following equation:
![Q=mC(T_2-T_1)](https://img.qammunity.org/2022/formulas/chemistry/college/ooztaw25xi84naqurjyn6topmz4qq8uxvv.png)
Whereas Q is the involved heat, m the mass, C the specific heat and T2 and T1 the final and initial temperatures respectively. Thus, since we need the specific heat, we proceed as follows:
![C=(Q)/(m(T_2-T_1))](https://img.qammunity.org/2022/formulas/chemistry/college/hzn13t8l9zieickojag806y4xjyp2e0loh.png)
Thus, we plug in to obtain:
![C=(15,650J)/(750g(250\°C-25\°C)) \\\\C=0.152(J)/(g\°C)](https://img.qammunity.org/2022/formulas/chemistry/college/y67qq2woiwbps50465iwsi9akw6v121q00.png)
Best regards!