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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![### Chemistry Problem: Molecule Calculation
**Question:**
3) How many molecules are in 120.6 g of carbon? Show all your work.
**Instructions:** To solve this problem, consider the following steps:
1. **Determine the number of moles of carbon:**
- Use the molar mass of carbon, which is approximately 12.01 g/mol.
- Calculate the moles using the formula:
\[
\text{Moles of Carbon} = \frac{\text{Mass of Carbon (g)}}{\text{Molar Mass of Carbon (g/mol)}}
\]
2. **Calculate the number of molecules:**
- Use Avogadro's number, \(6.022 \times 10^{23}\) molecules/mol, to convert moles to molecules.
- Multiply the number of moles by Avogadro's number.
3. **Show all calculations clearly to ensure understanding and accuracy.**](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fe2dac4f4-a9bd-4021-84b9-9c5bd3b78b57%2F0a0d6a7f-fb19-4f5e-9ddc-4d775a18538f%2Fccys23p_processed.jpeg&w=3840&q=75)
Transcribed Image Text:### Chemistry Problem: Molecule Calculation
**Question:**
3) How many molecules are in 120.6 g of carbon? Show all your work.
**Instructions:** To solve this problem, consider the following steps:
1. **Determine the number of moles of carbon:**
- Use the molar mass of carbon, which is approximately 12.01 g/mol.
- Calculate the moles using the formula:
\[
\text{Moles of Carbon} = \frac{\text{Mass of Carbon (g)}}{\text{Molar Mass of Carbon (g/mol)}}
\]
2. **Calculate the number of molecules:**
- Use Avogadro's number, \(6.022 \times 10^{23}\) molecules/mol, to convert moles to molecules.
- Multiply the number of moles by Avogadro's number.
3. **Show all calculations clearly to ensure understanding and accuracy.**
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