Blackboard X - с 1 Gmail < Esc app.101edu.co YouTube STARTING AMOUNT Aktiv Chen X 14°C Mostly cloudy Maps X b Search res x Welcome to MyTCC Jill F3 Your Sets X 403 Forbidden: Ac... b Answered: x ADD FACTOR 1.01 How many moles of propylene (CH) are in 25.0 1 0 4.15 x 10- 25.0 molecules Cale Quiz 3-Fl x Question 31 of 50 QL 12.01 6.022 x 102 b Answered: x ANSWER 1 36.03 mol CH g C₂H/mol 9 42.09 ASUS сда of the substance? 0.694 g C₂H b Answered: x FIO RESET 2 0.594 F G The oxidat x + Q☆ PH Sc W Insert

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### Propylene Mole Calculation Example

#### Question 31 of 50

**Prompt:**  
How many moles of propylene (C₃H₆) are in 25.0 g of the substance?

#### Calculation Process:

1. **Starting Amount:**  
   The weight of the substance is provided as 25.0 grams.

2. **Conversion Setup:**  
   To find the number of moles, you will use the molecular weight of propylene along with the given mass.

3. **Formula:**
   \[
   \text{Number of moles} = \frac{\text{given mass (g)}}{\text{molar mass (g/mol)}}
   \]

#### Reference Data and Buttons:

- **Molecular Weights and Constants:**  
  - Hydrogen (H): 1.01  
  - Carbon (C): 12.01  
  - Molar Mass of C₃H₆: 42.09 g/mol  
  - Avogadro's Number: 6.022 x 10²³

- **Calculation Interface:**
  - Input fields are provided to enter values for the starting amount and conversion factors.
  - Various selectable options for units such as molecules C₃H₆, mol C₃H₆, g C₃H₆/mol, and g C₃H₆ are available.

#### Final Steps:

- Use the provided molecular weight for propylene (42.09 g/mol) to compute the moles in 25.0 grams.
- Ensure to use correct units and significant figures in your calculations.

**Note:** This setup is typically used in educational environments to teach students how to convert grams of a substance into moles using molecular weight.
Transcribed Image Text:### Propylene Mole Calculation Example #### Question 31 of 50 **Prompt:** How many moles of propylene (C₃H₆) are in 25.0 g of the substance? #### Calculation Process: 1. **Starting Amount:** The weight of the substance is provided as 25.0 grams. 2. **Conversion Setup:** To find the number of moles, you will use the molecular weight of propylene along with the given mass. 3. **Formula:** \[ \text{Number of moles} = \frac{\text{given mass (g)}}{\text{molar mass (g/mol)}} \] #### Reference Data and Buttons: - **Molecular Weights and Constants:** - Hydrogen (H): 1.01 - Carbon (C): 12.01 - Molar Mass of C₃H₆: 42.09 g/mol - Avogadro's Number: 6.022 x 10²³ - **Calculation Interface:** - Input fields are provided to enter values for the starting amount and conversion factors. - Various selectable options for units such as molecules C₃H₆, mol C₃H₆, g C₃H₆/mol, and g C₃H₆ are available. #### Final Steps: - Use the provided molecular weight for propylene (42.09 g/mol) to compute the moles in 25.0 grams. - Ensure to use correct units and significant figures in your calculations. **Note:** This setup is typically used in educational environments to teach students how to convert grams of a substance into moles using molecular weight.
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