Devise a Method to Identifying the Cation and Anion : Alkaline Earth Cation

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timer Asked: Feb 12th, 2019
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Question Description

How to identify a solution containing an alkaline earth cation using only two tests and halide anion using one test, which should require only one halogen plus starch?

Look carefully at the results of the alkaline earth tests and describe how to identify an alkaline earth cation using only two tests.

Look at the results of the halogen tests and describe how to identify one of the three halide ions by using only one halogen.

Devise a Method to Identifying the Cation and Anion : Alkaline Earth Cation
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Tutor Answer

TutorLeal
School: UIUC

Attached.

OUTLINE
INTRODUCTION
BODY
CONCLUSION


Running head: CHEMISTRY

1

Chemistry Experiment
Student:
Institutional Affiliation:
Instructor:
Date:

CHEMISTRY

2
Devising a Method of Identifying the Cation and Anion
Alkaline Earth Cation Test Identification

Qualitative Analysis of Mg2+ using 1M H2SO4 and 0.25M (NH4)2C2O4
Add about 2ml sample of aqueous salt of Ca2+, Mg2+, Sr2+, and Ba2+ in four different
clean small test tubes. To each test tube, add one drop of 1M H2SO4 and shake well for
complete mixing. Record the observation made in every test tube. Finally, to the two test tubes
remaining with no precipitate formed, add one drop of 0.25M (NH4)2C2O4 and then shake well.
Observe and record the result. The absence of precipitate formation indicates the presence of
Mg2+.
Qualitative Analysis of Ca2+ using 1M H2SO4 and 0.25M (NH4)2C2O4
Add about 2ml sample of aqueous salt of Ca2+, Mg2+, Sr2+, and Ba2+ in four different
clean small test tubes. To...

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Anonymous
Thanks, good work

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