Part A A volume of 75.0 mLmL of H2OH2O is initially at room temperature (22.00 ∘C ∘C). A chilled steel rod at 2.00 ∘C ∘C is placed in the water. If the final temperature of the system is 21.00 ∘C ∘C , what is the mass of the steel bar?
Use the following values:

specific heat of water = 4.18 J/(g⋅∘C)J/(g⋅∘C)

specific heat of steel = 0.452 J/(g⋅∘C)J/(g⋅∘C)

Express your answer to three significant figures and include the appropriate units.

Part B
The specific heat of water is 4.18 J/(g⋅∘C)J/(g⋅∘C). Calculate the molar heat capacity of water.
Express your answer to three significant figures and include the appropriate units.