Question

How many moles are in 2.16 x 1024 atoms of silver??

Answer 1

2,16·10²⁴ = 21,6·10²³
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6,02·10²³ atoms ------ 1 mole of Ag
21,6·10²³ atoms ------ X
X = 21,6·10²³/6,02·10²³
X = 3,588 moles of silver

:)

Answer 2

3.5868 moles of silver are equal to
`2.16* 10^(24)` atoms.

Step-by-step explanation:

Number of atoms =
`n* N_A`

n = moles of the compound or element

`N_A`= Avogadro number

`N_A=6.022* 10^(23) mol^(-1)`

Moles of silver be x

Number of silver atoms =
`2.16* 10^(24)` atoms

`2.16* 10^(24)=x* 6.022* 10^(23)`

`x=(2.16* 10^(24))/(6.022* 10^(23)mol^(-1))=3.5868 moles`

3.5868 moles of silver are equal to
`2.16* 10^(24)` atoms.