Chemistry
Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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**Question:**

What is the relative atomic mass of the element that consists of the following isotopes in the indicated natural abundances?

**Table: Isotopic Composition**

| Isotope | Isotopic Mass (amu) | Relative Abundance (%) |
|---------|---------------------|------------------------|
| 1       | 57.93               | 67.76                  |
| 2       | 59.93               | 26.16                  |
| 3       | 60.93               | 1.25                   |
| 4       | 61.93               | 3.66                   |
| 5       | 63.93               | 1.16                   |

**Instructions:**

Express your answer to three significant figures and include the appropriate units.

---

**Hints:**

- Use the weighted average formula to calculate the relative atomic mass:
  
  \[
  \text{Relative Atomic Mass} = \sum (\text{Isotopic Mass} \times \text{Relative Abundance})
  \]

- Ensure the sum of relative abundances is equal to 100%.

- Double-check calculations for accuracy.

---

**Answer Submission:**

Provide your calculated value below and submit.

- **Value:** [Input Box]
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Transcribed Image Text:**Question:** What is the relative atomic mass of the element that consists of the following isotopes in the indicated natural abundances? **Table: Isotopic Composition** | Isotope | Isotopic Mass (amu) | Relative Abundance (%) | |---------|---------------------|------------------------| | 1 | 57.93 | 67.76 | | 2 | 59.93 | 26.16 | | 3 | 60.93 | 1.25 | | 4 | 61.93 | 3.66 | | 5 | 63.93 | 1.16 | **Instructions:** Express your answer to three significant figures and include the appropriate units. --- **Hints:** - Use the weighted average formula to calculate the relative atomic mass: \[ \text{Relative Atomic Mass} = \sum (\text{Isotopic Mass} \times \text{Relative Abundance}) \] - Ensure the sum of relative abundances is equal to 100%. - Double-check calculations for accuracy. --- **Answer Submission:** Provide your calculated value below and submit. - **Value:** [Input Box] - **Units:** [Input Box] **Submit Button:** [Submit]
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