Can someone please help me with this Chemistry problem?

Question

600.0 mL of H₂SO₄ is titrated with a 6.0 M solution of NaOH and requires only 6.8 mL of NaOH to reach the endpoint. According to the unbalanced equation H₂SO₄ + NaOH → H₂O + Na₂SO₄, what is the concentration of the H₂SO₄?

A. 0.041 moles

B. 0.021 moles

C. 0.034 M

D. 21 M

E. 34 M

Answer 1

H2SO4 + 2NaOH ==> Na2SO4 + 2H2O ... balanced equation

moles NaOH needed = 0.0068 L x 6.0 mols/L = 0.0408 moles

moles H2SO4 present = 0.0408 mols NaOH x 1 mol H2SO4 / 2 mols NaOH = 0.0204 mols H2SO4

Concentration of H2SO4 = 0.0204 mols / 0.6000 L = 0.034 M (answer C)