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A

Anonymous

Feb 10, 2025

The density of solid w is 19.3 g/cm3. how many atoms are present per cubic centimeter of w?

The density of solid W is 19.3 g/cm³. How many atoms are present in one cubic centimeter of W? As a solid, W adopts a body-centered cubic (BCC) unit cell structure. How many unit cells are present in one cubic centimeter of W? What is the volume of a single unit cell of this metal? Additionally, what is the edge length of a unit cell of W? Please provide a detailed explanation.

2 Answers

A
Anonymous

Dec 27, 2024

How many atoms are present per cubic centimeter of W?Since it is a BCC cell, then it will have 4 atoms per unit cell.As a solid, W adopts a body-centered cubic unit cell. How many unit cells are present per cubic centimeter of W?(19.3 g/cm^3)( 1 mol / 183.84 g) ( 6.022x10^23 atoms / 1 mol ) ( 1 cell / 4 atoms) = 1.58x10^22 cells / cm^3Hope this helps.
A
Anonymous

Nov 01, 2024

From the given density, 19.3 g/cm³, every cubic centimeter of tungsten (W) has a mass of 19.3 grams. Determine the amount of substance in moles by dividing the mass by the molar mass,                             (19.3 g) x (1 mole/ 183.84 g) = 0.1044 molesThe number of atoms is calculated by multiplying the amount in moles by the Avogadro's number.                     (0.1044 moles) x (6.022x10^23 atoms / moles) = 6.29x10^22 atoms. Thus, there are approximately 6.29x10^22 atoms of W. 

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