Solution stoichiometry question?
When H2SO4 and NaOH is reacted, is it the H+ and OH- that has equal number of moles, or the H2SO4 and NaOH has equal number of moles? Thanks.
- Roger the MoleLv 75 years ago
H+ and OH- react in equal numbers of moles.
1 mole of H2SO4 reacts with 2 moles of NaOH.
- ChemTeamLv 75 years ago
It will be the H^+ and the OH^- that have the equal number of moles.
complete molecular eq:
H2SO4 + 2NaOH ---> Na2SO4 + 2H2O
This is where the 1:2 molar ratio of H2SO4 and NaOH comes from.
net ionic equation:
2H^+ + 2OH^- ---> 2H2O
2H^+ from one H2SO4 and 2OH^- from 2NaOH. The 1:2 ratio up above gets obscured here. That's because the ratio above is based on the full molecular formula, not just the number of ions involved.
H^+ + OH^- ---> H2O
and there is your 1;1 ratio of just the ions.
- AlLv 75 years ago
H2SO4 + 2NaOH --------------. Na2SO4 + 2H2O
You figure it out.