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Posted by on Wednesday, November 28, 2012 at 12:54am.

A volume of 100ml of h20 is initially at room temperature (22.0c). A chilled steel rod at 2.00C is placed in the water. If the final temperature of the system is 21.2C , what is the mass of the steel bar?

  • CHEMISTRY - , Wednesday, November 28, 2012 at 11:12pm

    heat lost by steel rod + heat gained by H2O = 0
    [mass rod x specific heat rod x (Tfinal-Tinitial)] + [mass H2O x specific heat H2O x (Tfinal-Tinitial)] = 0
    Substitute and solve for the only unknown.

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