calorimtery worksheet w answers.pdf - WNHS Chemistry Name...

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Chemistry for Engineering Students
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Chapter 11 / Exercise 11.15
Chemistry for Engineering Students
Brown/Holme
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WNHS Chemistry Name ___________________ Period ____ WORKSHEET #1: Calorimetry Problems Heat equation: ______________________ Specific Heat Capacities (Joules/g o C) Aluminum ……… 0.903 Brass …………… 0.386 Iron …………….. 0.449 Lead ……………. 0.128 H 2 O (liquid)……. 4.18 Sand …………… 0.740 1. Three different 30-gram metal samples (aluminum, brass, and lead) were heated to 100 o C and then each was placed into styrofoam cups that contained 60 grams of room temperature water. After the heat exchange occurred, the temperature of the metal samples was about 30 o C. Calculate the amount of heat energy that each metal sample lost to the water. 2. Which metal sample released the greatest amount of heat energy? ___________ 3. Which metal sample released the least amount of heat energy? __________ Practice Problems : Show ALL work! 4. How much heat energy is required to warm 275 g water from 76 o C to 87 o C?
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Chemistry for Engineering Students
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Chapter 11 / Exercise 11.15
Chemistry for Engineering Students
Brown/Holme
Expert Verified
5. A quantity of water is heated from 25

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