Answer:
3469248 C
Explanation:
Avogadro’s number represent the number of the constituent particles which are present in one mole of the substance. It is named after scientist Amedeo Avogadro and is denoted by [tex]N_0[/tex].
Avogadro constant:-
[tex]N_a=6.023\times 10^{23}[/tex]
Thus, number of atoms of lithium in 12 moles = [tex]12\times 6.023\times 10^{23}[/tex]
Also, 1 atom of lithium has 3 electrons.
So, number of electrons in 12 moles of lithium atoms = [tex]3\times 12\times 6.023\times 10^{23}[/tex]
Charge on 1 electron = [tex]1.6\times 10^{-19}C[/tex]
So,
Total negative charge = [tex]3\times 12\times 6.023\times 10^{23}\times 1.6\times 10^{-19}\ C[/tex] = 3469248 C
