Question

The charge on 1 gram of Mg+2 ions is

Answer 1

Answer:

no of moles Mg^+2 ions =given wt/molar wt

Here,

given wt =1gram

molar wt=24gmole^-1

So,no.s of moles in Mg^+2 ions=1/24=0.0416mole

we can see that in one mole of Mg^+2 ion 0.0416

moles electrons occurr so,in 0.0416 moles of Mg^+2 ions =0.0416×2=0.083 moles of electrons

occur.

Now,

no of electrons=no of mole ofelectrons×Avagdro's constant.

=0.083×6.022×10^23.

We also know that charge of 1 electron=1.6×10^-19

So, charge by total electrons=0.083×6.022×10^23×1.6×10^-19

=0.8029×10^4 C

=8.03×10^3 C

Answer 2

Answer:

1/24 NAe coulomb is the correct option