**Calculating the Formula Weight of Chromium(III) Sulfide** This educational tool can be useful for chemistry students to practice calculating the formula weight of a compound involving ions. Below you will see a table that helps you determine the total weight of ions in the compound by considering their atomic weight and the number of each ion present. **Table: Calculation Breakdown** | Ion | Atomic Weight | Number of Ions | Weight of Ions | |-------|---------------|----------------|----------------| | Cr³⁺ | __________ amu | × | = __________ amu | | S²⁻ | __________ amu | × | = __________ amu | Formula weight of chromium(III) sulfide = __________ amu **Steps Breakdown:** 1. **Identify the Atomic Weight**: - Chromium ion (Cr³⁺) - Sulfide ion (S²⁻) 2. **Determine the Number of Each Ion in the Compound**: - The subscripts in the chemical formula indicate how many of each ion are present. 3. **Calculate the Weight for Each Ion**: - Multiply the atomic weight of the ion by the number of ions. 4. **Add the Weights Together**: - Sum up the individual weights to get the total formula weight of the compound. Finally, you can fill in the blanks according to the given or known atomic weights and the stoichiometry given in the problem. **Instructions:** 1. Enter the respective atomic weights for Cr³⁺ and S²⁻. 2. Insert the number of ions present based on the chemical formula of chromium(III) sulfide. 3. Multiply the atomic weight by the number of ions for each, and input the resulting weights into the respective "Weight of Ions" column. 4. Add the weights of Cr³⁺ and S²⁻ to find the total formula weight of chromium(III) sulfide. Submit your final answer once all fields are accurately completed to check your understanding. If you need to start over, select "Retry Entire Group." **Note:** - Ensure to use the correct atomic weights from a reliable periodic table. - Chromite ion's charge is +3, while sulfide ion's charge is -2.
**Calculating the Formula Weight of Chromium(III) Sulfide** This educational tool can be useful for chemistry students to practice calculating the formula weight of a compound involving ions. Below you will see a table that helps you determine the total weight of ions in the compound by considering their atomic weight and the number of each ion present. **Table: Calculation Breakdown** | Ion | Atomic Weight | Number of Ions | Weight of Ions | |-------|---------------|----------------|----------------| | Cr³⁺ | __________ amu | × | = __________ amu | | S²⁻ | __________ amu | × | = __________ amu | Formula weight of chromium(III) sulfide = __________ amu **Steps Breakdown:** 1. **Identify the Atomic Weight**: - Chromium ion (Cr³⁺) - Sulfide ion (S²⁻) 2. **Determine the Number of Each Ion in the Compound**: - The subscripts in the chemical formula indicate how many of each ion are present. 3. **Calculate the Weight for Each Ion**: - Multiply the atomic weight of the ion by the number of ions. 4. **Add the Weights Together**: - Sum up the individual weights to get the total formula weight of the compound. Finally, you can fill in the blanks according to the given or known atomic weights and the stoichiometry given in the problem. **Instructions:** 1. Enter the respective atomic weights for Cr³⁺ and S²⁻. 2. Insert the number of ions present based on the chemical formula of chromium(III) sulfide. 3. Multiply the atomic weight by the number of ions for each, and input the resulting weights into the respective "Weight of Ions" column. 4. Add the weights of Cr³⁺ and S²⁻ to find the total formula weight of chromium(III) sulfide. Submit your final answer once all fields are accurately completed to check your understanding. If you need to start over, select "Retry Entire Group." **Note:** - Ensure to use the correct atomic weights from a reliable periodic table. - Chromite ion's charge is +3, while sulfide ion's charge is -2.
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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Transcribed Image Text:**Calculating the Formula Weight of Chromium(III) Sulfide**
This educational tool can be useful for chemistry students to practice calculating the formula weight of a compound involving ions.
Below you will see a table that helps you determine the total weight of ions in the compound by considering their atomic weight and the number of each ion present.
**Table: Calculation Breakdown**
| Ion | Atomic Weight | Number of Ions | Weight of Ions |
|-------|---------------|----------------|----------------|
| Cr³⁺ | __________ amu | × | = __________ amu |
| S²⁻ | __________ amu | × | = __________ amu |
Formula weight of chromium(III) sulfide = __________ amu
**Steps Breakdown:**
1. **Identify the Atomic Weight**:
- Chromium ion (Cr³⁺)
- Sulfide ion (S²⁻)
2. **Determine the Number of Each Ion in the Compound**:
- The subscripts in the chemical formula indicate how many of each ion are present.
3. **Calculate the Weight for Each Ion**:
- Multiply the atomic weight of the ion by the number of ions.
4. **Add the Weights Together**:
- Sum up the individual weights to get the total formula weight of the compound.
Finally, you can fill in the blanks according to the given or known atomic weights and the stoichiometry given in the problem.
**Instructions:**
1. Enter the respective atomic weights for Cr³⁺ and S²⁻.
2. Insert the number of ions present based on the chemical formula of chromium(III) sulfide.
3. Multiply the atomic weight by the number of ions for each, and input the resulting weights into the respective "Weight of Ions" column.
4. Add the weights of Cr³⁺ and S²⁻ to find the total formula weight of chromium(III) sulfide.
Submit your final answer once all fields are accurately completed to check your understanding. If you need to start over, select "Retry Entire Group."
**Note:**
- Ensure to use the correct atomic weights from a reliable periodic table.
- Chromite ion's charge is +3, while sulfide ion's charge is -2.
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