Make_a_Hot_Pack - temperature recorded. Temperature reached:

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Make a Hot Pack From Tammie Niffenegger of Port Washington High School [email protected] Name: ___________________________ Materials: Activated charcoal medicine cup Iron powder Vermiculite Salt 100 mL beaker Electronic Scale Mortar and pestle Beaker 10 ml grad. Cylinder Procedure: 1. Place a medicine cup on the scale, rezero, and weigh out 5g of activated charcoal. Pour into your mortar and pestle. 2. Weigh out 1.0 g of vermiculite and add to the mortar and pestle. 3. Grind up the activated charcoal and vermiculite until it is a powder. 4. Pour into your 100 mL beaker. 5. Using your medicine cup, weigh out 10 grams of iron powder . Add to the beaker. 6. Using a plastic cup, weigh out 1 g of salt . Add to the beaker. 7. Add 2.5 mL of water to the beaker. 8. Using your stirring rod mix the contents of your beaker for at least 30 seconds. Let stand a minute, and mix again. 9. Dump the contents of the beaker into a baggie. Take the baggie to the teacher to have the
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Unformatted text preview: temperature recorded. Temperature reached: _______________________ Teacher’s initials: ________________________ Clean Up: 1. Keep the baggie. Empty it out and place back on the lab bench for the next group. 2. Do not wash the mortar and pestles. 3. Notify the teacher if you are low on any chemicals for the lab Conclusion and Analysis: 1. Is this an exothermic or endothermic reaction? How do you know? 2. What is the chemical reaction that is occurring? 3. Drivers complain that salt on the roads cause their cars to rust faster. Is this a valid complaint? Explain. 4. When the store bought warmer is stored back in the plastic bag it came in and sealed up, why does the reaction stop? 5. You learned that several things could slow down or stop a reaction. What is # 4 an example of? a. Inhibitor b. Limiting reactant c. Decreasing the concentration d. Decreasing the temperature...
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This note was uploaded on 11/09/2011 for the course CHEM 100 taught by Professor Sdfsdf during the Winter '08 term at BYU.

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