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II. 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. 1. Cobalt crystallizes in a HCP unit cell. Its atomic radius is 0.1253 nm. Its density is 8,900 kg/m³. Using this information, estimate Avogadro's number.

II. 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. 1. Cobalt crystallizes in a HCP unit cell. Its atomic radius is 0.1253 nm. Its density is 8,900 kg/m³. Using this information, estimate Avogadro's number.

Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
8th Edition
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:William L. Masterton, Cecile N. Hurley
Chapter9: Liquids And Solids
Section: Chapter Questions
Problem 60QAP: Aluminum metal crystallizes with a face-centered cubic unit cell. The volume of the cell is 0.0662...
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I. 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. 1. Cobalt crystallizes in a HCP unit cell. Its atomic radius is 0.1253 nm. Its density is 8,900 kg/m³. Using this information, estimate Avogadro's number. 2. A hypothetical alloy has a face-centered cubic unit cell. Its density is 10,470 kg/m2, 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??
Transcribed Image Text:I. 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. 1. Cobalt crystallizes in a HCP unit cell. Its atomic radius is 0.1253 nm. Its density is 8,900 kg/m³. Using this information, estimate Avogadro's number. 2. A hypothetical alloy has a face-centered cubic unit cell. Its density is 10,470 kg/m2, 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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