25 ml from a stock solution containing NaHCO_(3) andNa_(2)CO_(3) was diluted to 250 ml with CO_(2) free distilled water. 25 ml of the diluted solution when titrated with 0.12 M HCl required 8 ml., when phenolphthalein was used as an indicator. Na_(2)CO_(3) + HCl overset("HPh")(rarr)NaHCO_(3) When 20 ml of diluted solution was titrated with same acid it required 18 ml when methlyorange was used as an indicator. Na_(2)CO_(3)+2HCloverset("MeOH")(rarr)2NaCl+H_(2)O +CO_(2) NaHCO_(3) +HCl overset( MeOH)(rarr) NaCl +H_(2)O +CO_(2) Concentration of NaHCO_(3) in gm//lit.

25 ml from a stock solution containing NaHCO_(3) andNa_(2)CO_(3) was d

1.	25 ml from a stock solution containing NaHCO_(3) andNa_(2)CO_(3) was diluted to 250 ml with CO_(2) free distilled water. 25 ml of the diluted solution when titrated with 0.12 M HCl required 8 ml., when phenolphthalein was used as an indicator. Na_(2)CO_(3) + HCl overset("HPh")(rarr)NaHCO_(3) When 20 ml of diluted solution was titrated with same acid it required 18 ml when methlyorange was used as an indicator. Na_(2)CO_(3)+2HCloverset("MeOH")(rarr)2NaCl+H_(2)O +CO_(2) NaHCO_(3) +HCl overset( MeOH)(rarr) NaCl +H_(2)O +CO_(2) Concentration of NaHCO_(3) in gm//lit.
Answer» 0.312 2.62 3.12 26.208 Answer :D