Calculate the mass, in grams, of a single tungsten atom (mw = 183.84 amu ).

The formula for number of moles is :

    -(1)

The atomic mass of tungsten =   (given)

Number of atoms of tungsten = 1

Since, 1 mol =

So, number of moles of tungsten =

Rearranging the formula (1) as:

Substituting the values:

Hence, the mass of a single tungsten atom (mw = 183.84 amu ) is .

your answer would be a. 12.5 kg

if you're asking what comes out, it's steam.