Help me with these questions please. Thank you. 1. In this experiment you use a
ID: 1045832 • Letter: H
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Help me with these questions please. Thank you.
1. In this experiment you use a calorimeter. What's the everyday common name for the calorimeter you use in the experiment?v 2. Calorimeters isolate the chemical system you are studying from the surroundings so that you can measure changes in temperature. In the experimental set up you place your calorimeter in a 600 mL beaker. Why do you do that?v 3. In this experiment you will determine q, the heat flow. Write the equation for q that relates q to the mass of the system, the specific heat, and the change in T. A. What units is mass measured in? B. What are the units of specific heat?* C. What units is the change in T calculated in? D. What units are used with q?v 4. Chemical reactions or processes can be described as exothermic or endothermic. For each term complete the following table. Term Sign Heat Is heat transferred from the system to the absorbed or surroundings, or surroundings to system?. released?. Exothermic Endothermic 5. In the experiment vou carry out, classify each as a part of the svstem or surroundings, Item- Stir bar- Thermometer Calorimeter Chemicals you pour in System or surroundings? 6. One of the goals of the experiment is to determine the heat of dissolution of ammonium nitrate. Write the formula for ammonium nitrate, and the ions that are formed when it dissolves in water,w 7. Write the balanced chemical equation for aqueous solutions of NaOH and HCl reacting What kind of chemical reaction is this? What's the net ionic equation?vExplanation / Answer
1.
The common name for the caloriemeter you use in the experiment is styrafoam cup calorimeter.
2
Place the calorimeter in beaker for measuring the heat is same as measuring the change in chemical reaction.When the reaction occurs,change in temperature proportional to enthalpy released by the reaction.
3.
A) Units of mass is gram.
B) Unit of specific heat is J/g degree C
C) Change intemperature by degree C
D) Unit of q is joule.
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