6.051 ✕ 1023 atoms be converted to moles

6.051 × 10²³ atoms contain 1.005 moles.

Explanation:

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,

18 g of water = 1 mole = 6.022 × 10²³ molecules of water

1.008 g of hydrogen = 1 mole = 6.022 × 10²³ atoms of hydrogen

Given data:

Number of atoms = 6.051 × 10²³ atoms

Number of moles = ?

Solution:

One mole  = 6.022 × 10²³ atoms

For 6.051 × 10²³ atoms:

(1 mol / 6.022 × 10²³ atoms) ×  6.051 × 10²³ atoms

0.17 ×  6.051 × 10²³ × 10⁻²³ moles

1.005 moles

So,

6.051 × 10²³ atoms contain 1.005 moles.

2fe + 3h2so4 -> fe2(so4)3 + 3h2

it is necessary to balance equations in order to get the proper amount of reactants as well as products in order not to make a miscalculation.

you cannot change the subscripts as that would change the substance itself. for instance, diatomic elements such as h2 only have the subscript two when a gas. another example would be so4, if you were to change the subscript, the element would no longer be sulfate.

we change the coefficients instead as that only changes the number of molecules rather than the substance itself.

hope this !