PLEASE HELP ME

[peanot]

What is the molarity of NaOH solution if 22.5mL of .365M H₂SO₄ are needed to neutralize 50.00 mL of base. I have to balance the equation before doing the calculations, but I don't know how to, please help!! The products are sodium sulfate and water.

[peter]

What is the molarity of NaOH solution if 22.5mL of .365M H₂SO₄ are needed to neutralize 50.00 mL of base. I have to balance the equation before doing the calculations, but I don't know how to, please help!! The products are sodium sulfate and water.

First you need tow rite a balanced equation of the neutralization reaction:

Code: Select all

2NaOH + H2SO4 = Na2SO4 + 2H2O

Then compute the number of moles of H₂SO₄.
n(H₂SO₄) = .365M * (22.5/1000) L
Now you can find the number of moles of NaOH:
n(NaOH) = 2*n(H₂SO₄)
and finally the molarity:
mu(NaOH) = n(NaOH)/V(NaOH)

~peter