Asked by cao

I post this question two time before but the degree sign is wrong so I post this one with everything corrected for the final time. Thank upon who answer this question on the other 2 same question before. Calculate the final temperature that results from mixing 245 grams of cobalt, specific heat 0.446 J/g degree C, at 142 degree C with 106 grams of water at 24.8 degree C.
Answered by DrBob222
heat lost by Co + heat gained by H2O = 0

[mass Co x specific heat Co x (Tfinal-Tinitial)] + [mass H2O x specific heat H2O x (Tfinal-Tinitial) = 0
Subsitute and solve for Tf which is the only unknown in the equation.
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