Question

Consider a grain of table salt which is made of positive

and negative ions (Na+and Cl−). Suppose each of these ions carries a charge of 1.60x10^−19 C and are 5.29x10^−11mapart. What is the magnitude of the electrostatic force

between them?

Answer 1

Force,
`F=8.23* 10^(-8)\ N`

Step-by-step explanation:

It is given that,

Each ion in Na⁺ and Cl⁻ has a charge of,
`q=1.6* 10^(-19)\ C`

Distance between two ions,
`d=5.29* 10^(-11)\ m`

We need to find the electrostatic force. It is given by :

`F=k(q_1q_2)/(d^2)`

`F=9* 10^9* ((1.6* 10^(-19))^2)/((5.29* 10^(-11))^2)`

`F=8.23* 10^(-8)\ N`

So, the magnitude of electrostatic force between them is
`F=8.23* 10^(-8)\ N`. Hence, this is the required solution.