A worker pours 1.250 kg of molten lead at a temperature of 365.0oC into 0.5000 kg of

Question:

A worker pours 1.250 kg of molten lead at a temperature of 365.0oC into 0.5000 kg of water at a temperature of 75.00oC in an insulated bucket of negligible mass. Assuming no heat loss to the surroundings, calculate the mass of lead and water remaining in the bucket when the materials have reached thermal equilibrium.