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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![### Question:
1.00 g of benzoic acid corresponds to how many mmol of this compound?
### Explanation:
To find the number of millimoles (mmol) of benzoic acid in 1.00 g, you need to use the formula:
\[ \text{Number of moles} = \frac{\text{mass (g)}}{\text{molar mass (g/mol)}} \]
Given:
- Mass of benzoic acid = 1.00 g
- Molar mass of benzoic acid = 122.12 g/mol (The molar mass can be found from a chemical database or periodic table)
Steps:
1. First, calculate the moles of benzoic acid:
\[ \text{Number of moles} = \frac{1.00 \text{ g}}{122.12 \text{ g/mol}} = 0.00819 \text{ moles} \]
2. Convert moles to millimoles (mmol), recognizing that 1 mole = 1000 mmol:
\[ 0.00819 \text{ moles} \times 1000 = 8.19 \text{ mmol} \]
Therefore, 1.00 g of benzoic acid corresponds to 8.19 mmol of the compound.
This detailed conversion provides a clear understanding of how to determine the amount of a substance in millimoles, which is a common requirement in chemistry calculations.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F96020765-7427-4c4f-9c33-de27bcf0f575%2F6abe9893-afcf-4399-b45d-15d98e03e61a%2F205q4n_processed.png&w=3840&q=75)
Transcribed Image Text:### Question:
1.00 g of benzoic acid corresponds to how many mmol of this compound?
### Explanation:
To find the number of millimoles (mmol) of benzoic acid in 1.00 g, you need to use the formula:
\[ \text{Number of moles} = \frac{\text{mass (g)}}{\text{molar mass (g/mol)}} \]
Given:
- Mass of benzoic acid = 1.00 g
- Molar mass of benzoic acid = 122.12 g/mol (The molar mass can be found from a chemical database or periodic table)
Steps:
1. First, calculate the moles of benzoic acid:
\[ \text{Number of moles} = \frac{1.00 \text{ g}}{122.12 \text{ g/mol}} = 0.00819 \text{ moles} \]
2. Convert moles to millimoles (mmol), recognizing that 1 mole = 1000 mmol:
\[ 0.00819 \text{ moles} \times 1000 = 8.19 \text{ mmol} \]
Therefore, 1.00 g of benzoic acid corresponds to 8.19 mmol of the compound.
This detailed conversion provides a clear understanding of how to determine the amount of a substance in millimoles, which is a common requirement in chemistry calculations.
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