Avolume of 115 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 21.40 ∘c , what is the mass of the steel bar?

the old alchemists made significant contributions to science even though there starting premises were off a bit. their conclusions after failure would steer them into better directions for investigation. science is no more than close observation and the initial mistakes result in rethinking and retrying experiments.