Chemistry, 04.02.2020 11:54 tamikeen2243
To a sample of water at 23.4oc in a constant pressure calorimeter of negligible heat capacity is added a 12.1 g piece of aluminium whose temperature is 81.7oc. if the final temperature of water is 24.9 oc, calculate the mass of the water in the calorimeter. ans: 98.6g
-i know that the specific heat of aluminum is 0.900 j/g ‡ ác
- _t al is 24.9ác _ 81.7ác = _56.8ác
- _twater and _tcalorimeter are both 24.9ác _ 23.4ác = 1.5ác.
-the specific heat of water is 4.184 j/g ‡ ác.
but i tried using m=q/s_t. i'm really stuck, can anyone me?
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