Acid-base calculation help

Oct 2019
1
0
Abu Dhabi
-a pipette is used to remove 10cm3 portions of solution z
- each portion is titrated with 0.0050moldm3 sodium hydroxide
- mean Titre is 21.10cm3

Calculate number of moles of sulfuric acid in the 40cm3 if solution Z
2NaOH+H2So4=Na2SO4+2H2O

Answer: moles of naoh=(21.10/1000)*0.00500=1.06*10^4 mols

21.10———1.06*10^-4
40 X
X=(40*1.06*^-4)/21.10
Until here is this correct?