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You and a friend are hiking the Appalachian Trail when a storm comes through. You stop to eat, but find that all available firewood is too wet to start a fire. From your chemistry class you remember that heat is given off by some chemical reactions; if you could mix two solutions together to produce an exothermic reaction, you might be able to cook the food you brought along for the hike. Luckily, being the dedicated chemist that you are, you never go anywhere without taking along a couple chemical solutions, just for times like this. The Virtual Lab contains solutions of compounds X and Y. These compounds react to produces a new compound, Z, according to the reaction:
X + Y --> Z
The following activities will guide you in using this reaction to produce the heat needed to warm up your food to 50ºC.
Your first task is to design and perform an experiment to determine the enthalpy of reaction for two solutions in the virtual lab. The questions below will be useful in determining this value.
Experimental part: DONE
| What is the enthalpy of reaction for this reaction? |
| Well done! You did a good job!
You can now print this page to turn in with your homework. |
| Design two solutions, initially at 25ºC, that, when mixed together in equal volumes, cause the temperature of the mixture to increase from 25°C to 50°C. |
| Great! You are done!
You can now print this page to turn in with your homework. |