1. A sample contains BaCl2 plus inert matter. What weight must be taken so that when the solution is titrated with 0.100 AgNO3, the milliliters of titrant will be equal to the percent BaCl2 in the sample?

47. A sample contains BaCl2 plus inert matter. What weight must be taken so that when the solution is titrated with 0.100 AgNO3, the milliliters of titrant will be equal to the percent BaCl2 in the sample? 48. A 0.250-g sample of impure AICI3 is titrated with 0.100 M AgNO3, requiring 48.6 mL. What volume of 0.100 M EDTA would react with a 0.350-g sample? (EDTA reacts with Al+ in a 1:1 49. A 425.2-mg sample of a purified monoprotic organic acid is titrated with 0.1027 M NaOH, 50. The purity of a 0.287-g sample of Zn(OH2 is determined by titrating with a standard HC 51. A sample of pure KHC204 H2C204 2H2O (three replaceable hydrogens) requires 46.2 mL of ratio.) requiring 28.78 mL. What is the formula weight of the acid? solution, requiring 37.8 mL. The HCI solution was standardized by precipitating AgCl in a 0.100 M NaOH for titration. How many milliliters of 0.100 M KMnO4 will the same-size sample react with? (See Problem 45 for reaction with KMnO4) BACK-IITRATIONS