The formula for sulfur tetrafluoride is SF4. a. How many grams of sulfur are present in 3.90 moles of sulfur tetrafluoride? grams b. How many moles of fluorine are present in 4.21 grams of sulfur tetrafluoride? moles

Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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### The Formula for Sulfur Tetrafluoride

The chemical formula for sulfur tetrafluoride is SF<sub>4</sub>.

#### Question A
How many grams of sulfur are present in 3.90 moles of sulfur tetrafluoride?

**Answer:**
\[ \_\_\_\_\_\_ \] grams

#### Question B
How many moles of fluorine are present in 4.21 grams of sulfur tetrafluoride?

**Answer:**
\[ \_\_\_\_\_\_ \] moles
Transcribed Image Text:### The Formula for Sulfur Tetrafluoride The chemical formula for sulfur tetrafluoride is SF<sub>4</sub>. #### Question A How many grams of sulfur are present in 3.90 moles of sulfur tetrafluoride? **Answer:** \[ \_\_\_\_\_\_ \] grams #### Question B How many moles of fluorine are present in 4.21 grams of sulfur tetrafluoride? **Answer:** \[ \_\_\_\_\_\_ \] moles
### Reaction of Iron with Hydrochloric Acid

**Description:**

When iron reacts with hydrochloric acid, iron(II) chloride and hydrogen are produced. The balanced equation for this reaction is:

\[ \text{Fe}(\text{s}) + 2\text{HCl}(\text{aq}) \rightarrow \text{FeCl}_2(\text{aq}) + \text{H}_2(\text{g}) \]

**Problem Statement:**

If 8 moles of hydrochloric acid react:

- **The reaction consumes**: ____ moles of iron.
- **The reaction produces**: ____ moles of iron(II) chloride and ____ moles of hydrogen.

**Interactive Questions:**

Students are required to calculate the moles of iron consumed, and the moles of iron(II) chloride and hydrogen produced in the reaction using the provided balanced chemical equation.

**Important Notes:**

1. **Stoichiometry:** Use stoichiometric coefficients from the balanced equation to determine the mole ratios.

Example: According to the balanced equation: 
\[ 1 \text{ mole of Fe} : 2 \text{ moles of HCl} : 1 \text{ mole of FeCl}_2 : 1 \text{ mole of H}_2 \]

**Procedure:**

- Calculate the moles of reactants and products using the stoichiometric ratios given in the balanced equation.

**Interactive Submission:**

- After solving for the required mole quantities, input the values in the respective fields and use the "Submit Answer" button to check your solution.

**Additional Features:**

- You may retry the problem using the "Retry Entire Group" button if initial attempts are incorrect.
- There are 2 more group attempts remaining.

**User Interface Elements:**

- **Submit Answer**: To check the solutions provided.
- **Retry Entire Group**: To restart the problem solving from the beginning.

---
This description ensures that students understand the context of the problem and the steps required to solve it, providing a clear pathway to the interactive elements of the exercise.
Transcribed Image Text:### Reaction of Iron with Hydrochloric Acid **Description:** When iron reacts with hydrochloric acid, iron(II) chloride and hydrogen are produced. The balanced equation for this reaction is: \[ \text{Fe}(\text{s}) + 2\text{HCl}(\text{aq}) \rightarrow \text{FeCl}_2(\text{aq}) + \text{H}_2(\text{g}) \] **Problem Statement:** If 8 moles of hydrochloric acid react: - **The reaction consumes**: ____ moles of iron. - **The reaction produces**: ____ moles of iron(II) chloride and ____ moles of hydrogen. **Interactive Questions:** Students are required to calculate the moles of iron consumed, and the moles of iron(II) chloride and hydrogen produced in the reaction using the provided balanced chemical equation. **Important Notes:** 1. **Stoichiometry:** Use stoichiometric coefficients from the balanced equation to determine the mole ratios. Example: According to the balanced equation: \[ 1 \text{ mole of Fe} : 2 \text{ moles of HCl} : 1 \text{ mole of FeCl}_2 : 1 \text{ mole of H}_2 \] **Procedure:** - Calculate the moles of reactants and products using the stoichiometric ratios given in the balanced equation. **Interactive Submission:** - After solving for the required mole quantities, input the values in the respective fields and use the "Submit Answer" button to check your solution. **Additional Features:** - You may retry the problem using the "Retry Entire Group" button if initial attempts are incorrect. - There are 2 more group attempts remaining. **User Interface Elements:** - **Submit Answer**: To check the solutions provided. - **Retry Entire Group**: To restart the problem solving from the beginning. --- This description ensures that students understand the context of the problem and the steps required to solve it, providing a clear pathway to the interactive elements of the exercise.
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