# how do you find the charge for Avogadro's number??

The problem states that one farady is equal to 96,480 columbs. It gives us the charge on an electron to be 1.6022 x 10^-19 columbs, and then it asks for a value for Avogadro's number. im assuming it means in faradays?? anyone have a clue?

### 2 Answers

- 1 decade agoFavorite Answer
In physics, the faraday (not to be confused with the farad) is a unit of electrical charge; one faraday is equal to the charge of 6.02 × 10^23 electrons (one mole). The faraday is no longer in general use and has been replaced by the SI unit coulomb; one faraday is approximately equivalent to 96485.3415 coulombs.

The value of a faraday, F, can easily be calculated:

= Na * e

where

Na is Avogadro's number (6.022 ×10^23 mol-1)

e is the elementary charge (1.602 ×10^-19 C)

Therefore Na = F/e = 96480/1.602 ×10^-19 = 6.022 ×10^23 mol-1

- 1 decade ago
Avogadro's Number or Avogadro Constant, the number of molecules that exist in one mole, of any substance, represented by the symbol NA or L. It has been determined to be approximately 6.0221367 × 1023.

Farad is thederived SI unit of capacitance. Since charge and farad are the concepts of electric field. they can be compared. but avagadro's number is a different concept. So u cannot compare charge and avagadro's number

Source(s): My 2.5kg brain