Mail-Scheffel, Reagan - Outlook X → с STARTING AMOUNT 68°F Clear app.101edu.co X BIO 120 LAB - Google Docs 1380 ADD FACTOR x( ) 2.30 ▬▬▬▬ ■ 2770 X What is the change in enthalpy in kilojoules when 2.30 mol of Mg solid is completely reacted according to the following reaction? 2 Mg(s) + O2(g) →→→ 2 MgO(s) AH = -1204 kJ 24.31 Content Question 21 of 37 40.31 6.022 x 1023 1 -1204 -2770 N 2 X ANSWER Day Aktiv Chemistry 0.001 -1380 32.00 RESET 3 1000 5540 X + -5540 ABP R Submit + X 9:45 PM 11/4/2022

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Chapter1: Chemical Foundations
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**Educational Content: Thermochemistry Calculation**

**Question 21 of 37:**

**Problem Statement:**
- Determine the change in enthalpy in kilojoules when 2.30 moles of magnesium (Mg) solid is completely reacted according to the following chemical reaction:

\[ 
2 \, \text{Mg(s)} + \text{O}_2(\text{g}) \rightarrow 2 \, \text{MgO(s)} \quad \Delta H = -1204 \, \text{kJ} 
\]

**Interactive Calculation Tool:**
- **Starting Amount:** 
  - Two input fields for users to enter their data.

- **Calculation Setup:**
  - A multiplication sign followed by parentheses, suggesting a factor multiplication setup for calculating enthalpy change.
  - Additional fields inside the parentheses are provided to input necessary numerical values related to the reaction.

- **Interactive Elements:**
  - **Add Factor:**
    - Multiplication factor button \( \times ( ) \)
  - Numerical values for factors include:
    - 2.30, 2770, \( 6.022 \times 10^{23} \), -1204, 0.001, 32.00, 5540, 1380, 24.31, 40.31, 1, 2, -1380, 1000, -5540

- **Answer Section:**
  - An input field indicated by an equals sign \( = \) where users compute and input their answer.

- **Reset Button:**
  - A button to reset the input fields and calculation settings.

**Explanation:**
The task involves calculating the change in enthalpy for a specified reaction. Users will utilize the provided tools to multiply the number of moles by the enthalpy change per mole derived from the balanced equation. The negative sign in the enthalpy change suggests an exothermic reaction. 

This educational tool guides learners through a critical concept in chemistry, emphasizing the calculation of energy changes during chemical reactions.
Transcribed Image Text:**Educational Content: Thermochemistry Calculation** **Question 21 of 37:** **Problem Statement:** - Determine the change in enthalpy in kilojoules when 2.30 moles of magnesium (Mg) solid is completely reacted according to the following chemical reaction: \[ 2 \, \text{Mg(s)} + \text{O}_2(\text{g}) \rightarrow 2 \, \text{MgO(s)} \quad \Delta H = -1204 \, \text{kJ} \] **Interactive Calculation Tool:** - **Starting Amount:** - Two input fields for users to enter their data. - **Calculation Setup:** - A multiplication sign followed by parentheses, suggesting a factor multiplication setup for calculating enthalpy change. - Additional fields inside the parentheses are provided to input necessary numerical values related to the reaction. - **Interactive Elements:** - **Add Factor:** - Multiplication factor button \( \times ( ) \) - Numerical values for factors include: - 2.30, 2770, \( 6.022 \times 10^{23} \), -1204, 0.001, 32.00, 5540, 1380, 24.31, 40.31, 1, 2, -1380, 1000, -5540 - **Answer Section:** - An input field indicated by an equals sign \( = \) where users compute and input their answer. - **Reset Button:** - A button to reset the input fields and calculation settings. **Explanation:** The task involves calculating the change in enthalpy for a specified reaction. Users will utilize the provided tools to multiply the number of moles by the enthalpy change per mole derived from the balanced equation. The negative sign in the enthalpy change suggests an exothermic reaction. This educational tool guides learners through a critical concept in chemistry, emphasizing the calculation of energy changes during chemical reactions.
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