J.R. S. answered 11/24/19
Ph.D. University Professor with 10+ years Tutoring Experience
The equation you will use is q = mCΔT
q = heat = 23.8 J
m = mass = ?
C = heat capacity =?
ΔT = change in temperature = ?
So as you can see we have 2 unknowns. We need to know the mass of the unknown metal.

J.R. S.
11/24/19
Hira S.
The question does not give you the mass. I thought you could just use the heat capacity formula which is c=q/delta T? It would be 23.8J/15.4C= 1.55J. Is that correct?11/24/19