Student Y carried out the same exercise but used phenolphthalein as an indicator. Which of the following statements about the titration is true?

Student X titrated 25 cm3 of Na2CO3 with 0.1 mol dm−3 HCI, using methyl orange as an indicator. Student Y carried out the same exercise but used phenolphthalein as an indicator. Which of the following statements about the titration is true?

A. hydrogen chloride gas was released in the reactions in both titrations
B. the titer values obtained from the titration are equal
C. the titer value obtained by X is twice that of Y
C. the titer value obtained by Y is twice that of X

Correct Answer:

Option B = the titer values obtained from the titration are equal