When methyl orange is used, the equation is;
Na2CO3+2HCL=2NaCl+H2O+CO2
When phenolphthalein is used, the equation obtained is;
Na2CO3+ HCL =NaCl+NaHCO3
Thus, the titre value obtained by X is twice that of Y.

Student X titrated 25 cm\(^{3}\) of Na\(_{2}\)CO\(^{3}\) 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?

WAEC SSCE

hydrogen chloride gas was released in the reactions in both titrations

the titer values obtained from the titration are equal

the titer value obtained by X is twice that of Y

the titer value obtained by Y is twice that of X

Earlier discussion