n = m/M = v/V =c*v
where n = moles, V = molar volume (NB there are 2 depending on the tmp), M = Molar Mass, c = concentration, m = mass, v=volume
that is the mega equation about moles you should have learnt in year 11
Now
2NaOH (aq) + CO2 (g) -----> Na2CO3 (s) + H2O (l)
we...