## Two small silver spheres, each of mass m=6.2 g, are separated by distance d=1.2 m. As a result of transfer of some fraction of electrons fro

Two small silver spheres, each of mass m=6.2 g, are separated by distance d=1.2 m. As a result of transfer of some fraction of electrons from one sphere to the other, there is an attractive force F=900 KN between the spheres. Calculate the fraction of electrons transferred from one of the spheres: __________

To evaluate the total number of electrons in a silver sphere, you will need to invoke Avogadro’s number, the molar mass of silver equal to 107.87 g/mol and the fact that silver has 47 electrons per atom.

## Answers ( )

Answer:4.60 × 10⁻⁸Explanation:From the given information;

Assuming that q charges are transferred, then:

where;

k = 9 ×10⁹

q = 0.012 C

No of the electrons transferred is:

Initial number of electrons = N × 47 × no of moles

here;

no of moles = 0.0575 mol

∴

Initial number of electrons =

= 1.63 × 10²⁴

The fraction of electrons transferred

=

4.60 × 10⁻⁸