Answered: Image /qna-images/answer/e6850f57-6daf-4926-89f4-7d282782e87e.jpg

b- 0.46 M c- 0.52 M 3) A 3..23 g sample of impure lead nitrate was analyzed by gravimetric analysis to determine the percentage of lead by mass present. Sodium sulphate was delivered from a buretle to precipitate the lead ions as lead sulphate. The precipitate was filtered, washed, and dried before been weighed. When weighed, the precipitate had a mass of 1.44 g. the mass percent of Pb in impure sample is Pb(NO3)2 + Na₂SO4 PbSO4-2NaNO (fw for PbSO4 303.26 g/mol and Atomic mass for 'pb 207.2 g/mol) a-60.59% b-44.27% c-80.71% 5) H (MW 241.86 g/mol) c-1.37 M d-30.46% 4) the pH for the solution that result from mixing of 50 ml 0.020 M in HC1 and 100 ml of 0010 a- 2.87 b-1.18

b- 0.46 M c- 0.52 M 3) A 3..23 g sample of impure lead nitrate was analyzed by gravimetric analysis to determine the percentage of lead by mass present. Sodium sulphate was delivered from a buretle to precipitate the lead ions as lead sulphate. The precipitate was filtered, washed, and dried before been weighed. When weighed, the precipitate had a mass of 1.44 g. the mass percent of Pb in impure sample is Pb(NO3)2 + Na₂SO4 PbSO4-2NaNO (fw for PbSO4 303.26 g/mol and Atomic mass for 'pb 207.2 g/mol) a-60.59% b-44.27% c-80.71% 5) H (MW 241.86 g/mol) c-1.37 M d-30.46% 4) the pH for the solution that result from mixing of 50 ml 0.020 M in HC1 and 100 ml of 0010 a- 2.87 b-1.18

Introduction to General, Organic and Biochemistry

11th Edition

ISBN:9781285869759

Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres

Publisher:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres

Chapter1: Matter, Energy, And Measurement

Section: Chapter Questions

Problem 1.101P

See similar textbooks