Answered: Cobalt crystallizes in a HCP unit cell.…

Cobalt crystallizes in a HCP unit cell. Its atomic radius is 0.1253 nm. Its density is 8,900 kg/m. Using this information, estimate Avogadro's number.

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

Please answer number 1 asap

PROBLEM SOLVING: Solve the following problems completely, neatly and orderly. Express
all answers to the nearest 4th decimal place. No unit or wrong unit means wrong answer.
II.
1. Cobalt crystallizes in a HCP unit cell. Its atomic radius is 0.1253 nm. Its density is 8,900
kg/m. Using this information, estimate Avogadro's number.
2. A hypothetical alloy has a face-centered cubic unit cell. Its density İs 10,470 kg/m³,
and its atomic weight is 106.8 g/mole.
a) What is the atomic radius of the alloy in cm?
b) What is the volume of the single atom of the alloy in cm?

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