Can you help me solve this chemistry problem?

Question

If the heat capacity of an unknown substance is 0.423 J/g oC. how much heat is required to raise the temperature of 15 grams of this substance from 25 degrees C to 50 degrees C.

Answer 1

You would use the equation >>>Q = m c ΔT, where Q is the heat energy. Therefore:

Q=(15)*(0.423J/gdegC)*(50-25)
Q=1.5x10^2 Joules

Answer 2

Q = mc(delta T)

Q = (15 g)(0.423 J/gC)(25 C)