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Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074

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BuyFindarrow_forward

Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074
Textbook Problem

Iron has a body-centered cubic unit cell with a cell dimension of 286.65 pm. The density of iron is 7.874 g/cm3. Use this information to calculate Avogadro’s number.

Interpretation Introduction

Interpretation:

The Avogadro number of iron has to be calculated.

Concept introduction:

The dimension of the atom is given below,

d=Z × Ma3×NA

The Avogadro number of the atom is given below,

NA=Z × Ma3×d

Explanation

  density =7.874g/cm3molarmassofvanadium=55.845 ucell dimension =286.65 pm(or)×10-10cm

  d=Z × Ma3×NA

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