posted by Katie Wilson .
3. What volume of 0.18M Na2CO3 would neutralize 25ml of the HCL solution?
Na2CO3 + 2HCl ==> 2NaCl + H2O + CO2\
How many mols HCl do you have? That's M x L = ?mols. You don't have a M HCl listed. This is as far as you can go.