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sehelizabeth01
2.25739773716275. I used a calculator during class today to get this answer, and I am pretty sure it is right, hope it helps. 

Answer : The moles of tungsten is, 2.257 moles

Explanation : Given,

Mass of tungsten = 415 grams

Molar mass of tungsten = 183.85 g/mole

Formula used :

[tex]\text{Moles of tungsten}=\frac{\text{Given mass of tungsten}}{\text{Molar mass of tungsten}}[/tex]

Now put all the given values in this formula, we get :

[tex]\text{Moles of tungsten}=\frac{415g}{183.85g/mole}=2.257moles[/tex]

Therefore, the moles of tungsten is, 2.257 moles

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