A volume of 100. mL of H2O is initially at room temperature (22.00 °C). A chilled steel rod at 2.00 °C is placed in the water. If the final temperature of the system is 21.00 °C, what is the mass of the steel bar?

Use the following values:

specific heat of water = 4.18 J/(g. °C)
specific heat of steel = 0.452 J/(g.)

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