[mangox]

I'm confused about when to use avogadro's number....So my question is when will I use avogadro's number? when converting to what?
And if possible, can someone give me an example problem?

tnx

[enahs]

When needed?
Mols to Molecules?

[Astrokel]

hi, just to add on examples..

moles = (no. of particles)/ N_A    where N_A is avogadro's constant

how many ions in 0.500mol of NaCl(aq)

no of ions = 0.500 x N_A x 2

how many moles of CO₂ is 3.01 x 10²³ of CO₂

moles  = 3.01 x 10^23 / N_A

so you can use to find moles or no.of particles.

[mangox]

So, solving for number of particles and moles is the time to use avogadro's number....now I know
tnx for the help