Question

Use the titration results to calculate the moles of h2so4

Answer 1

Missing in your question: the molarity of H2SO4 M = 0.1 M
and the equivalence point (mL) = 19.31 mL = 0.019 L
So by using the molarity formula:

molarity of H2SO4 = no of moles of H2SO4 / Volume L

So by substitution:
0.1 M = no of moles of H2SO4  /  0.019 L
∴ no of moles of H2SO4 = 0.1 M * 0.019 L
                                          = 0.0019 mol