The flask shown here contains 10.0 mL of HCl and a few drops of phenolphthalein indicator. The buret contains 0.270 M NaOH.

Question

What volume of NaOH is needed to reach the end point of the titration?

What was the initial concentration of HCl?

Answer 1

You don't have enough information posted to work the problem; I assume the picture to which you refer gives the volume of NaOH.
mols NaOH = M x L = ?
mols HCl = mols NaOH
M HCl = mols HCl/L HCl.

Answer 2

Vol NaoH titration Ml Naoh (1L/1000 mL) (.270 M (NAOH)= mol NaOH

Answer 3

Then mol of NaOH mol HCL/.010L