BASED ON FORMULAE
7.5 - 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
" 5 moles of electrons is equivalent to how many
" How much volume does 2.5 moles of CO2 gas occupy
number allows us to carrying out calculations between:
- 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 7.5.1 we
will learn how to convert between mass (in grams) and moles.
- In the next section, section 7.5.2
we will learn how to convert between moles and number of particles.
- In the next section, section 7.5.3
we will learn how to convert between mass (in grams) and number of particles.
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of Moles of Units. Avogadro's Number (N) ..p189