a. What is the mass of 1.49 x 1024 atoms of chlorine? grams b. What is the mass of 9.12 x 1023 molecules of chlorine? grams

Chemistry
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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
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### Chemistry Questions

#### a. What is the mass of \( 1.49 \times 10^{24} \) atoms of chlorine?
   [_______] grams

#### b. What is the mass of \( 9.12 \times 10^{23} \) molecules of chlorine?
   [_______] grams

---

### Explanation

These questions require understanding how to convert the number of atoms or molecules to grams using the concept of the mole and Avogadro's number. Avogadro's number (\(6.022 \times 10^{23}\)) is the number of atoms or molecules in one mole of a substance. The mass of one mole of chlorine (Cl) atoms can be found on the periodic table and is approximately 35.45 grams/mole. For chlorine molecules (Cl\(_2\)), the molecular mass is approximately 70.90 grams/mole.
Transcribed Image Text:### Chemistry Questions #### a. What is the mass of \( 1.49 \times 10^{24} \) atoms of chlorine? [_______] grams #### b. What is the mass of \( 9.12 \times 10^{23} \) molecules of chlorine? [_______] grams --- ### Explanation These questions require understanding how to convert the number of atoms or molecules to grams using the concept of the mole and Avogadro's number. Avogadro's number (\(6.022 \times 10^{23}\)) is the number of atoms or molecules in one mole of a substance. The mass of one mole of chlorine (Cl) atoms can be found on the periodic table and is approximately 35.45 grams/mole. For chlorine molecules (Cl\(_2\)), the molecular mass is approximately 70.90 grams/mole.
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