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Category > Chemistry Posted 19 Jun 2017 My Price 4.00

A piece of an unknown substance

A piece of an unknown substance weighing 124.0 grams is heated in boiling water to 100.0oC. When the substance is placed in a calorimeter containing 300.0 grams of water, the temperature of the water increased from 20.0oC to 26.0oC. What is the specific heat of the unknown substance, assuming all the heat is transferred to the water?

 

I have reworked this problem a hundred different ways but I am still coming up with the wrong answer. The correct answer is 0.82 J/g (oC) and I keep coming up with 0.83 and I can't figure out what I'm doing wrong. Help!!!!

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SuperTutor
(15)
Status NEW Posted 19 Jun 2017 01:06 AM My Price 4.00

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