A chemist has a 50.0 mL sample of 0.010 M Na₂C₂O4 at 25 °C (solution A, oxalate ion = C₂04²-). An aqueous solution of Ca(NO3)2 with a volume of 50.0 mL (solution B) is added to solution A, at the same temperature. Above what minimum concentration must Ca(NO3)2 in solution B be, prior to mixing, to cause CaC₂04 to precipitate given that for CaC₂O4, Ksp = 2.7 x 10-⁹ at 25 °C? Enter your answer with two significant figures, without units, and in millimolarity (mm) where: millimolarity = (molarity)(1000)

A chemist has a 50.0 mL sample of 0.010 M Na₂C₂O4 at 25 °C (solution A, oxalate ion = C₂04²-). An aqueous solution of Ca(NO3)2 with a volume of 50.0 mL (solution B) is added to solution A, at the same temperature. Above what minimum concentration must Ca(NO3)2 in solution B be, prior to mixing, to cause CaC₂04 to precipitate given that for CaC₂O4, Ksp = 2.7 x 10-⁹ at 25 °C? Enter your answer with two significant figures, without units, and in millimolarity (mm) where: millimolarity = (molarity)(1000)

Chemistry & Chemical Reactivity

9th Edition

ISBN:9781133949640

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter21: The Chemistry Of The Main Group Elements

Section21.5: The Alkaline Earth Elements, Group 2a

Problem 1Q

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