Chemistry Please show complete work for the question 2.CALORIMETRY a) How many kiloJoules of energy are...

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Chemistry

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Answer 1

Answer #1

How many kilojoules of energy are needed to raise the temperature of 1.50dm³ of water from 20.0^oC to 47.0^oC?

S=4.184 J/g·°C

Delta t =(47.0 - 20.0) °C

M=1.50dm³ of

Q=mst

= (4.184 J/g·°C) x (1500 g) x (47.0 - 20.0) °C = 169452 J = 169 kJ—answer

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Answer 2

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