[WhoCares357]

How many grams of dry NaOH must be added to 200 mL of 0.4 M H2SO4 to neutralize it completely? Molar mass of NaOH is 40 g/mol.

I'm going through a practice test (my professor doesn't post answers for it) and I wanted to see if I did this correctly:

I set up the equation NaOH + H2SO4 <-> HSO4- + H2O (l)
Then I set up an sRf table:

NaOH + H2SO4 <-> HSO4-
x            .08 mol      0
 -x         .08 - x       +x
 0           0              x

From this I figured the moles of NaOH = .08. Is this correct or did I totally miss the point of the question?

[JustinCh3m]

you need to recognize that there are 2 moles of H+ for every 1 mole of H2SO4 (diprotic acid).  You need to take this into consideration when deciding how much NaOH is needed for neutralization to occur...

-CollegeChemistryNotes

[Borek]

Is this correct or did I totally miss the point of the question?

This is simple stoichiometry, no need for ICE table - that is used when solving equilibrium problems. Start with properly balanced reaction equation.