What is the mass of 4.85 x 10^22 atoms of iron (fe)?

Mass = 4.5 g

Explanation:

Given data:

Number of atoms of iron = 4.85 ×10²² atoms

Mass of iron = ?

Solution:

The given problem will solve by using Avogadro number.

It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.

The number 6.022 × 10²³ is called Avogadro number.

For example,

4.85 × 10²² atoms of iron / 6.022 × 10²³ atoms × 1 mol

0.081 mol

Mass of iron:

Mass = number of moles × molar mass

Mass =  0.081 mol × 55.85 g/mol

Mass = 4.5 g

that's just how they are

explanation:

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it would be b. 6co2 + 6h2o --> c6h12o6 + 6o2