A certain solution of Na2CO3 requires 16ml of HCl at end point with methyl orange indicator; What amount would be required at end point if indicator used is phenolphthalein? (Dont spam pls tysm)

A certain solution of Na2CO3 requires 16ml of HCl at end point with me

1.	A certain solution of Na2CO3 requires 16ml of HCl at end point with methyl orange indicator; What amount would be required at end point if indicator used is phenolphthalein? (Dont spam pls tysm)
Answer» In the titration of NA2CO3 with HCl using METHYL orange indicator, the volume required at the equivalence point is twice that of the acid required using phenolphthalein indicator.REASONTwo mole of HCl are required for the COMPLETE NEUTRALIZATION of ONE mole of Na2CO3.