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Notebook Bound (no spiral notebooks) Write in ink Always write directly into your notebook (no transferring data after lab) If you have a messy notebook.

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Presentation on theme: "Notebook Bound (no spiral notebooks) Write in ink Always write directly into your notebook (no transferring data after lab) If you have a messy notebook."— Presentation transcript:

1 Notebook Bound (no spiral notebooks) Write in ink Always write directly into your notebook (no transferring data after lab) If you have a messy notebook I know you are using it! Pages numbers and dates Partner’s name Drawing of the apparatus (what did the calorimetry set-up look like?)

2 Sample Experiment

3 Data: Part 1Intial Temp. (  C) Final temp. (  C)  T (  C) Mass of calorimete r (g) Mass of HCl + calorimete r Mass of HCl in cup Volume of HCl (L) Molarit y of HCl (mol/L) Mass of Mg (g) Mass of MgO (g) Trial 122.146.023.90.02541.146 Trial 2 Part 2 Trial 1 Trial 2 Observations: Write down any thing that happens during the experiment. After adding Mg to the cup, there was a gas given off that smelled bad. After heating the reaction, for 5 minutes the mixture turned brown. Calculations: Moles of HCl = 0.025L x 1mole/L = 0.025moles  H(step 1) = C x (mass of Mg + mass of HCl) x  T Discussion/ postlab questions: Answer the postlab questions. Talk about the answers to the calculations that you got. In the Hess’s law experiment: Did the enthalpy of combustion that you calculated match the theoretical enthalpy? Talk about possible errors in the experiment that could have contributed to the fact that your answers are different.

4 Final Lab Reports 2 things: 1)Write out a lab report that includes the above 2)Make a copy of the experiment from your lab notebook and turn it in as the final report If you have carbon copies, you can turn those in as long as I can read them It is OK if it is messy as long as all of these things are in the report (purpose, procedure, equations, data, calculations, post lab questions, and discussion)


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