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4. Mole Concept
4.5 - Calculations involving Avogadro's number
As chemists, we need to be able to answers questions
of this type:
" How many oxygen atoms are there in
5.0 grams of Na2CO3?"
" 5 moles of electrons is equivalent
to how many electrons?"
Avogadro's
number allows us to carrying out calculations between:
- grams
- moles
- number of particles (eg - these can be #
of electrons, # of atoms, # of ions, # of molecules ... etc ...)
How do we do this?
- In the next section, section 4.5.1
we will learn how to convert between mass (in grams) and moles.
- In the next section, section
4.5.2 we will learn how to convert between moles and number
of particles.
- In the next section, section
4.5.3 we will learn how to convert between mass (in grams)
and number of particles.
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