A piece of stainless steel (specific heat = 0.50 J g-1C-1) is transferred from an oven at 1.561x10^2 C into 150. ml of water at 2.12x10^1 C. The...

A piece of stainless steel (specific heat = 0.50 J g-1°C-1) is transferred from an oven at 1.561x10^2 °C into 150. ml of water at 2.12x10^1 °C. The water temperature rises to 31.5 °C. Assuming that there is no heat loss and no loss of water vapour, calculate the mass (in g) of the piece of steel.