The molecular mass of an organic acid was determined by the study of its barium salt. 4.290g of salt was quantitiatively converted to free acid by the reaction with 21.64ml of 0.477 MH_(2)SO_(4). The barium salt was found to have two moles of water of hydration per Ba^(+2) ion and the acid is mono basic. what is molecular weight of anhydrous acid.

The molecular mass of an organic acid was determined by the study of i

1.	The molecular mass of an organic acid was determined by the study of its barium salt. 4.290g of salt was quantitiatively converted to free acid by the reaction with 21.64ml of 0.477 MH_(2)SO_(4). The barium salt was found to have two moles of water of hydration per Ba^(+2) ion and the acid is mono basic. what is molecular weight of anhydrous acid.
Answer» `137.32` `415.7` `242.4` `244.4` Solution :MEQ of barium salt = Meq. of acid `=21.64 xx 0.477 xx 2 = 20.64` Molecular weight of salt `=415.7` MW of ANHYDROUS salt `=379.7` Molecular weight of anion `=397.7 - 137.3 = 242.4` Molecular weight of acid `= 244.4`