Hey, im not 100% sure but ill give it a go
HCl + NaOH -> NaCl + H2O
Therefore 1 mol of HCl reacts with 1 mol of NaOH
Now calculate the number of moles of each
n=cV
HCl:
c= 0.08 mol/L
V= 0.02L
Therefore number of moles of HCl = 0.0016 mol
NaOH:
c= 0.05 mol/L
V= 0.03L...