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90.0 mL of H2O is initially at room temperature (22.0°C). A chilled steel rod at 2.0°C is placed in the water. If the final temperature of the system is 21.4 °C, what is the mass of the steel bar? Specific heat of water = 4.18 J/g•°C Specific heat of steel = 0.452 J/g•°C Express your answer numerically, in grams, to one significant figure.