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Convert the 123 g of CaF2 to moles.

Convert the 123 g of CaF2 to moles.

Chemistry
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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**5. Convert the 123 g of CaF₂ to moles.** To convert grams to moles, use the formula: \[ \text{Moles} = \frac{\text{mass (g)}}{\text{molar mass (g/mol)}} \] 1. **Identify the molar mass of CaF₂:** - Calcium (Ca) has an atomic mass of approximately 40.08 g/mol. - Fluorine (F) has an atomic mass of approximately 19.00 g/mol. - CaF₂ = 40.08 g/mol + 2(19.00 g/mol) = 78.08 g/mol. 2. **Perform the conversion:** - \[ \text{Moles of CaF₂} = \frac{123 \, \text{g}}{78.08 \, \text{g/mol}} \] - \[ \text{Moles of CaF₂} \approx 1.575 \, \text{mol} \] Therefore, 123 grams of CaF₂ is approximately 1.575 moles.
Transcribed Image Text:**5. Convert the 123 g of CaF₂ to moles.** To convert grams to moles, use the formula: \[ \text{Moles} = \frac{\text{mass (g)}}{\text{molar mass (g/mol)}} \] 1. **Identify the molar mass of CaF₂:** - Calcium (Ca) has an atomic mass of approximately 40.08 g/mol. - Fluorine (F) has an atomic mass of approximately 19.00 g/mol. - CaF₂ = 40.08 g/mol + 2(19.00 g/mol) = 78.08 g/mol. 2. **Perform the conversion:** - \[ \text{Moles of CaF₂} = \frac{123 \, \text{g}}{78.08 \, \text{g/mol}} \] - \[ \text{Moles of CaF₂} \approx 1.575 \, \text{mol} \] Therefore, 123 grams of CaF₂ is approximately 1.575 moles.
Expert Solution
Step 1

Given information is as follows:

The mass of CaF2 = 123 g

The moles of a substance can be calculated as follows:

Moles of substance=Mass of the substanceMolar mass of substance

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