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Review for Mass and Energy Page 1
Answer the following equation showing all work
1. A chemical reaction absorbes 4.35Kcal of energy from 346ml of water. What is the initial temperature if the final temperature was 12.4degC?
2. A substance occupies 2.243E-2 (2.24X10-2) liters and has a density of 0.053g/cm3. What is the mass of this substance in g? If this mass is given 45.2 cals of heat and has a specific heat of 0.456 cal/(gdegC), what is the final temperature if the initial temperature is 65.4degC?(Substance is not water)
Answer: 1) 25.0degC 2) 1.2g,148.8degC