(a) Mass of the Calorimeter (two empty cups) in g: 4.0g (b) Mass of the cold water and the calorimeter in g: 52.5g (c) Calculated mass of the coldwater in g [(b)-(a)]: 48.5 (d) Temp. of the Cold Water in C: 14c (e) Temp. of the Hot Water before mixing with the cold in C: 38c (f) Mass of the Cold & hot water mixed AND the calorimeter in g: 100.6g (g) Calculated Mass of the Hot water in g [(f)-(b)]: 48.1g (h) Temperature of the mixed hot & cold water in C: 26c (i) Calculated Heat Lost by the Hot Water in J (SHOW WORK and answer!!),  q=mcDt,   (Mass of Hot Water in g)(4.18J/gC)(Mixed Temp - Hot Water Temp): Yes, it should be a negative value!    (j) Calculated Heat Gained by the Cold Water in J (SHOW WORK and answer!!), q=mcDt,  (Mass of Cold water in g)(4.18J/gC)(Mixed Temp - Cold Water Temp): Yes, it should be a positive value!   I do understand how to calcualte the heat gained and lost

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