Respuesta :

drpelezo

Answer:

150 moles (2 sig. figs.)

Explanation:

to convert from ...

grams to moles => divide by formula weight

moles to grams => multiply by formula weight

this problem:

Given mass of Iron (Fe) = 8200g

formula wt of Fe = 56g/mole

moles = mass/formula wt = 8200g / 56g/mol = 146.42857 moles (calculator) = 150 moles (2 sig. figs.)

shristiparmar1221

The number of moles in 8200 grams of iron is 57.69 moles of Fe.

What is Mole concept ?

Mole is defined as the amount of the substance containing the same number of discrete entities (atoms, molecules, ions, etc) as there are atoms in a sample of pure 12C weighing exactly 12g.

The number of particles present in one mole of any substance  is Avogadro Number and is equals to 6.023 x 10²³ particles.

Given ;

  • Weight :  8200 grams of iron

To find ;

  • Mole (n) : ?

Formula used :

  • Mole (n) = given weight / atomic weight

             =  8200 / 56   (atomic weight of Fe = 56 gm)

             

             = 157.69 moles of Fe.

Learn more about mole concept here ;

https://brainly.com/question/22540912

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