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12.) A 2.00g sample of limestone was dissolved in hydrochloric acid and all the calcium present in the sample was converted to Ca²+o): Excess ammonium oxalate solution, (NH,),C¸Ɔ(ag), was added to the solution to precipitate th e calcium ions as calcium oxalate, CaC,0(s). The precipitate was filtered, dried and weighed to a constant mass of 2.43g. Determine the percentage by mass of calcium in the limestone sample.

12.) A 2.00g sample of limestone was dissolved in hydrochloric acid and all the calcium present in the sample was converted to Ca²+o): Excess ammonium oxalate solution, (NH,),C¸Ɔ(ag), was added to the solution to precipitate th e calcium ions as calcium oxalate, CaC,0(s). The precipitate was filtered, dried and weighed to a constant mass of 2.43g. Determine the percentage by mass of calcium in the limestone sample.

Introductory Chemistry: A Foundation
Introductory Chemistry: A Foundation
9th Edition
ISBN:9781337399425
Author:Steven S. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Donald J. DeCoste
Chapter15: Solutions
Section: Chapter Questions
Problem 121AP: Calcium carbonate, CaCO3, can be obtained in a very pure state. Standard solutions of calcium ion...
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What is the percentage by mass of calcium in the limestone sample?

Try This Сopy li 12.) A 2.00g sample of limestone was dissolved in hydrochloric acid and all the calcium present in the sample was converted to Ca²+a0): oxalate solution, (NH)¸C¸Ɔ4(ag), solution to precipitate the calcium ions as calcium oxalate, CaC,Oa(9): The precipitate was filtered, dried and weighed to a constant mass of 2.43g. Determine the percentage by mass of calcium in the limestone sample. Excess ammonium (aq)• was added to the YouTu
Transcribed Image Text:Try This Сopy li 12.) A 2.00g sample of limestone was dissolved in hydrochloric acid and all the calcium present in the sample was converted to Ca²+a0): oxalate solution, (NH)¸C¸Ɔ4(ag), solution to precipitate the calcium ions as calcium oxalate, CaC,Oa(9): The precipitate was filtered, dried and weighed to a constant mass of 2.43g. Determine the percentage by mass of calcium in the limestone sample. Excess ammonium (aq)• was added to the YouTu
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