Question

In standard IUPAC units, the faraday is equal to 96,480 coulombs. A coulomb is the amount of electric charge passed when a current of one ampere flows for one second. Given the charge on the electron is 1.6022 x 10⁻¹⁹ coulombs, calculate a value for Avogadro's number. ____________________

Answer 1

To find Avogadro's number, divide the faraday (96,480 coulombs) by the charge on a single electron (1.6022 x 10⁻¹⁹ coulombs) to obtain Avogadro's number, approximately 6.022 x 10¹⁴.

Step-by-step explanation:

The question asks for the calculation of Avogadro's number using the charge on the electron and the faraday in standard IUPAC units. To find Avogadro's number, we need to divide the Faraday (F), which represents the total charge per mole of electrons, by the charge of a single electron.

The faraday is given as 96,480 coulombs. The charge on a single electron is known to be 1.6022 x 10⁻¹⁹ coulombs. Therefore, using the formula:

Avogadro's number = Faraday / Charge of one electron

Avogadro's number = 96,480 C / 1.6022 x 10⁻¹⁹ C

After calculating, we get:

Avogadro's number ≈ 6.022 x 10¹⁴

This gives us the number of particles, such as atoms or molecules, in one mole of a substance, which is a fundamental constant in chemistry.