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Need some help with those question from Calorimetry Heats of Solutions experiment 1 What

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Need some help with those question from Calorimetry: Heats of Solutions experiment

1.What

effect (larger or smaller) on the calorimeter constant calculated would be observed if the calorimeter cup were made of a conducting material (such as metal) rather than foam? Explain

2-What is the significance of the negative sign in the equation that we used to determine the calorimeter constant?

(Hint: q = – q)

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