Question

please solve this question

Answer 1

$<b><font face=copper black size=4 colour=purple>$$<b><marquee direction = "up"> <h3>$Given :

Number of oxygen atoms = 2.58 × $\mathsf{{10}^{24}}$

Using formula :

No. of moles = No. of atoms / Avogadro constant

Putting values

No. of moles = ( 2.58 × $\mathsf{{10}^{24}}$) / ( 6.022 × $\mathsf{{10}^{23}}$ )

No. of moles = ( 2.58 × 10 ) / 6.022

No. of moles = 4.28 moles

^^"