What is mass (including electrons and without electrons) of one atom of each of these elements...

What is mass (including electrons and without electrons) of one atom of each of these elements (in grams): Chromium, Molybdenum, and Tungsten?

Expert Solution

1 mole always contain = 6.023 x 10^23 atoms

1 mole Chromium mass = 51.9961 g

6.023 x 10^23 atoms of Cr mass = 51.9961 g

one atom Cr mass = 51.9961 / 6.023 x 10^23

one atom Cr mass = 8.63 x 10^-23 g

1 mole Molybdenum mass = 95.96 g

1 atom Molybdenum mass = 95.96 / 6.023 x 10^23

= 1.59 x 10^-22 g

1 atom Molybdenum mass = 1.59 x 10^-22 g

1 mole Tungsten mass = 183.84 g

1 atom Molybdenum mass = 183.84 / 6.023 x 10^23

= 3.05 x 10^-22 g

1 atom Tungsten mass = 3.05 x 10^-22 g

queen_honey_blossom answered 9 months ago

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