2) Enthalpy of reaction Calculate AH,n (For the trial used above) AHren for one mole of metal or metal oxide kJ/mol Evaluate Your value for q matches your data, but your value for AH,rzn does not. Check your work.

Chemistry
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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
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How do you solve for Hrxn?

**Section: Enthalpy of Reaction**

Calculate \( \Delta H_{\text{rxn}} \) [For the trial used above]

- Determine \( \Delta H_{\text{rxn}} \) for one mole of metal or metal oxide.

\[ \Delta H_{\text{rxn}} \] (text box)

Units: kJ/mol

- **Evaluate Button**

Ensure Accuracy: A message may appear indicating, "Your value for q matches your data, but your value for \( \Delta H_{\text{rxn}} \) does not. Check your work."
Transcribed Image Text:**Section: Enthalpy of Reaction** Calculate \( \Delta H_{\text{rxn}} \) [For the trial used above] - Determine \( \Delta H_{\text{rxn}} \) for one mole of metal or metal oxide. \[ \Delta H_{\text{rxn}} \] (text box) Units: kJ/mol - **Evaluate Button** Ensure Accuracy: A message may appear indicating, "Your value for q matches your data, but your value for \( \Delta H_{\text{rxn}} \) does not. Check your work."
For one of your trials, enter your data:

**Please list the sample you used**  
- Options: Mg, MgO, Zn, ZnO

**Mass of metal reacted**
- 0.229 g

**Mass of acid used**
- 20.1 g

**T_initial**
- 24.8 °C

**T_final**
- 30.5 °C

[Evaluate Button]

Inputs recorded.

---

**Explanation:**

The image depicts a data entry form for an experiment where trial data must be inputted. Key information includes the type of sample used, the mass of metal reacted, mass of acid used, and the initial and final temperatures in degrees Celsius. There is a button labeled "Evaluate" to process the data, and the status notification "Inputs recorded" indicates entries have been saved. The options for the sample are listed as magnesium (Mg), magnesium oxide (MgO), zinc (Zn), and zinc oxide (ZnO).
Transcribed Image Text:For one of your trials, enter your data: **Please list the sample you used** - Options: Mg, MgO, Zn, ZnO **Mass of metal reacted** - 0.229 g **Mass of acid used** - 20.1 g **T_initial** - 24.8 °C **T_final** - 30.5 °C [Evaluate Button] Inputs recorded. --- **Explanation:** The image depicts a data entry form for an experiment where trial data must be inputted. Key information includes the type of sample used, the mass of metal reacted, mass of acid used, and the initial and final temperatures in degrees Celsius. There is a button labeled "Evaluate" to process the data, and the status notification "Inputs recorded" indicates entries have been saved. The options for the sample are listed as magnesium (Mg), magnesium oxide (MgO), zinc (Zn), and zinc oxide (ZnO).
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