A piece of stainless steel (Sstainless steel = 0.50 j/g* C) is transferred from an oven (180 *C) to 125mL of water in an insulated container at 23.2 *C. The water temperature rises to 51.5 *C. What is the mass of the stainless steel?

Answer 1

[mass steel x specific heat steel x (Tfinal-Tinitial)] + [mass H2O x specific heat H2O x (Tfinal-Tinitial)] \ 0
Subsitute and solve for the unknown.