A student performing this lab experiment receives his unknown solution that may contain ( Ba, Ca and Mg ). And begins to conduct tests to identify 2+ 2+ 2+ the cations present in the unknown solution. Based on the following observation 1) When the unknown solution was treated with K,Cro4, no precipitate was formed. 2) The resulting solution from step 1 was basified with 6M NH, before the addition of aqueous K,C,0, which forms a white precipitate. 3) To the resulting solution from step 2, was treated with ammonia and of Na, HPO,. A white precipitate was formed after heating the solution for 10 minutes at 60°C. Which cations were present in the student's unknown solution? Select one or more: 2+ Ва 2+ Mg 2+ Са

A student performing this lab experiment receives his unknown solution that may contain ( Ba, Ca and Mg ). And begins to conduct tests to identify 2+ 2+ 2+ the cations present in the unknown solution. Based on the following observation 1) When the unknown solution was treated with K,Cro4, no precipitate was formed. 2) The resulting solution from step 1 was basified with 6M NH, before the addition of aqueous K,C,0, which forms a white precipitate. 3) To the resulting solution from step 2, was treated with ammonia and of Na, HPO,. A white precipitate was formed after heating the solution for 10 minutes at 60°C. Which cations were present in the student's unknown solution? Select one or more: 2+ Ва 2+ Mg 2+ Са

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Question

A student performing this lab experiment receives
his unknown solution that may contain ( Ba, Ca,
and Mg). And begins to conduct tests to identify
2+
2+
2+
the cations present in the unknown solution. Based
on the following observation
1) When the unknown solution was treated with
K,Cro4, no precipitate was formed.
2) The resulting solution from step 1 was basified
with 6M NH, before the addition of aqueous
K,C,0, which forms a white precipitate.
3) To the resulting solution from step 2, was treated
with ammonia and of Na,HPO,· A white precipitate
4
was formed after heating the solution for 10
minutes at 60°C.
Which cations were present in the student's
unknown solution?
Select one or more:
2+
Ва
2+
Mg
2+
Са

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