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lavendermosquito95Lv1

11 Dec 2019

All common ionic compounds of the alkali metal ions (group 1A of the periodic table) and of the ammonium ion (NH₄⁺) are _____________.

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Alyssa Mae RemarimLv10

22 Oct 2020

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Related questions

What evidence supports putting hydrogen in Group 1A (1) of the periodic table? In some periodic tables, hydrogen is listed separately from any of the groups. In what ways is hydrogen, unlike a typical Group 1A (1) element? What is the valence electron configuration for the alkali metals? List some common properties of alkali metals. How are the pure metals prepared? Predict the formulas of the compounds formed when an alkali metal reacts with F₂, S, P₄, H₂, and H₂O.

blushlion324

Summarize the solubility guidelines for common ions. (This question is graded according to a set of solubility rules provided by WebAssign. The solubility rules provided with your textbook might be slightly different. Select all that apply.)

All sulfates are soluble, except for the following ions.

Ag⁺

Hg₂²⁺

Pb²⁺

Ca²⁺

Sr²⁺

Ba²⁺

NH₄⁺

alkali metals

There are no known exceptions.

All sulfides are insoluble, except for the following ions.

Ag⁺

Hg₂²⁺

Pb²⁺

Ca²⁺

Sr²⁺

Ba²⁺

NH₄⁺

alkali metals

There are no known exceptions.

All carbonates are insoluble, except for the following ions.

Ag⁺

Hg₂²⁺

Pb²⁺

Ca²⁺

Sr²⁺

Ba²⁺

NH₄⁺

alkali metals

There are no known exceptions.

All phosphates are insoluble, except for the following ions.

Ag⁺

Hg₂²⁺

Pb²⁺

Ca²⁺

Sr²⁺

Ba²⁺

NH₄⁺

alkali metals

There are no known exceptions.

All hydroxides are insoluble, except for the following ions.

Ag⁺

Pb²⁺

Ca²⁺

Sr²⁺

Ba²⁺

alkali metals

There are no known exceptions.

Solution Investigation Question: What are some of the key characteristics of unknown sample of an aqueous solution containing an ionic compound?

1. Given that the cation is from Group 1A, what is the identity of the group 1A metal ion in your solution?

2. Given that the ionic compound contains either chloride or hydroxide, how can you determine which? (Two pieces of evidence are required and one must be related to solubility rules)

3. What is the concentration of your solution? (Your unknown sample is known to be about 1 M, but you need to determine the concentration to 3 significant figures using titration. You should plan ahead so that you know approximately what volume of your sample you will need in order to use approximately 25 mL of 0.100 M sulfuric acid for the titration).