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Posted: Thu Oct 03, 2019 9:37 pm
Can someone explain to me what exactly the avogadro number is and how we use it?

Posted: Thu Oct 03, 2019 9:43 pm
Avogadro's constant is 6.0221 x 10^23 mol^-1. Avogadro's number is typically used to convert between number of moles and the # of atoms, ions, or molecules!

Posted: Thu Oct 03, 2019 9:47 pm
Avogadro's number (6.022 x 10^23) represents the amount of something (for example atoms) contained in 1 mole of a substance. One way we have used it so far is when converting from number of atoms to moles, or vice versa. If given the amount of atoms, divide by Avogadro's number to find the amount of moles. If given the amount of moles, multiply by Avogadro's number to find the amount of atoms.

Posted: Thu Oct 03, 2019 9:48 pm
The number of units (atoms, molecules, compounds, etc.) in a mole.

Posted: Fri Oct 04, 2019 1:28 am
One mole has 6.022 x 1023 (or Avogadro's number!) of something. Moles do not always have to be used for molecules and atoms, but they typically are associated with them since Avogadro's number is very large. For example, if you are given a certain number of atoms of an element, you can find the number of moles of that element by dividing the given number of atoms by Avogadro's number (1 mole = 6.022 x 1023). :)