Question 5 Tungsten is a solid phase of tungsten still unknown to science. The only difference between it and ordinary tungsten is that Tungsten forms a crystal with an fcc unit cell and a lattice constant . Calculate the density of Tungsten .

Complete Question

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The density is  

Explanation:

From the question we are told that

      The lattice constant is  

Generally the volume of the unit cell is  

                                                             =>  

Converting to     We have  

The molar mass of Tungsten is constant with a value  

One mole of Tungsten contains   unit cells

    Where  is  a constant for the number of atom in one mole of a substance(Tungsten) which is known as Avogadro's constant

      Now for FCC distance  the number of atom per unit cell  is  n =  4

               Mass of Tungsten (M) =  

=>              Mass of Tungsten (M) =  

=>              Mass of Tungsten (M) =  

 Now  

      The density of  Tungsten is  

substituting values

answer: at room temperature (roughly 20 degrees c), you can dissolve 203.9 grams (or 200 grams) of sugar in 100 ml of water. as water temperature increases, the amount of sugar that will dissolve increases, up to about 500 grams of sugar in 100 ml water at 100 degrees c.

explanation: