Answer:
The correct solution is "3.535 × 1018 molecules".
Explanation:
The given values are:
Molar mass
= 322.0 g/mol
Dioxin constitute to 63 kg individual will be:
= [tex]0.03 \ mg\times 63[/tex]
= [tex]1.89 \ mg[/tex]
⇒ [tex]mole=\frac{mass}{molar \ mass}[/tex]
[tex]=\frac{ 1.89\times 10^{-3}}{322}[/tex]
[tex]=5.87\times 10^{-6} \ mol[/tex]
So,
The number of molecules will be:
= [tex]mole\times Na[/tex]
= [tex]5.87\times 10^{-6}\times 6.022\times 1023[/tex]
= [tex]3.535\times 1018[/tex] (molecules)
