Chemistry Help?
The chemical formulae of some chemical compounds are written in the first column of the table below. Each compound is soluble in water.
Imagine that a few tenths of a mole of each compound is dissolved in a liter of water. Then, write down in the third column of the table the chemical formula of the major chemical species that will be present in this solution.
Note: "major" chemical species are those present in concentrations greater than 10^-6 mol/L

C3H6(OH)2 : ?
FeI3 : ?
C3H8O : ?

Respuesta :

1) C3H6(OH)2 : this compound must be propan-1,2-diol or propylene glycol

This is covalent compound and will not dissociate in water so the chemical speceis present will be

H2O and C3H6(OH)2

2) FeI3: this is ionic compound and will dissociate to form

FeI3 ---> Fe+3  + 3I-

chemical species present : H2O , Fe^+3 and I^-1

3) C3H8O : this must be propanol again it will remain undissociated

so the chemical species present will be HeO and C3H6(OH)2

(1) The chemical species present will be [tex]\boxed{{{\text{H}}_{\text{2}}}{\text{O}}}[/tex] and [tex]\boxed{{{\text{C}}_{\text{3}}}{{\text{H}}_{\text{6}}}{{\left( {{\text{OH}}} \right)}_{\text{2}}}}[/tex].

(2) The chemical species present will be [tex]\boxed{{\text{F}}{{\text{e}}^{{\text{3}} + }}}[/tex], [tex]\boxed{{\text{3}}{{\text{I}}^ - }}[/tex] and [tex]\boxed{{{\text{H}}_{\text{2}}}{\text{O}}}[/tex].

(3) The chemical species present will be [tex]\boxed{{{\text{H}}_{\text{2}}}{\text{O}}}[/tex] and [tex]\boxed{{{\text{C}}_{\text{3}}}{{\text{H}}_{\text{8}}}{\text{O}}}[/tex]. For table (refer to the image attached).

Further Explanation:

Covalent compounds are those compounds which are formed by the electron sharing between two or more non-metals. Covalent bonds involve two atoms that share electrons and reach a more stable electron configuration

Ionic compounds are those compounds formed from the ions of the species. Ions are the species that are formed due to the loss or gain of electrons. Cation forms by the loss of electrons and anion forms by the gain of electrons in a neutral atom. The ionic bond is a chemical bond between two atoms in which one atom donates its electron to another atom.

Compounds made from two elements can either have an ionic or covalent bond.

(i) If a bond is formed from a metal and a non-metal then it will be ionic.

(ii)If a bond is formed from two non-metals then it will be covalent.

Ionic reaction:

The ionic reaction is a chemical reaction in which molecules dissociate into ions in water. In ionic reaction, net charge is same on both sides.

(1)  [tex]{{\mathbf{C}}_{\mathbf{3}}}{{\mathbf{H}}_{\mathbf{6}}}{\left( {{\mathbf{OH}}} \right)_{\mathbf{2}}}[/tex]

In [tex]{{\text{C}}_{\text{3}}}{{\text{H}}_{\text{6}}}{\left( {{\text{OH}}} \right)_{\text{2}}}[/tex], carbon (C), oxygen(O) and hydrogen(H) are nonmetals and form covalent bonds. Therefore, [tex]{{\text{C}}_{\text{3}}}{{\text{H}}_{\text{6}}}{\left( {{\text{OH}}} \right)_{\text{2}}}[/tex] is a covalent compound and will not dissociate in water. The chemical species present will be [tex]{{\text{H}}_{\text{2}}}{\text{O}}[/tex] and [tex]{{\text{C}}_{\text{3}}}{{\text{H}}_{\text{6}}}{\left( {{\text{OH}}} \right)_{\text{2}}}[/tex].

(2)  [tex]{\mathbf{Fe}}{{\mathbf{I}}_{\mathbf{3}}}[/tex]

In [tex]{\text{Fe}}{{\text{I}}_{\text{3}}}[/tex], Iron (Fe) is metal and iodine (I) is a nonmetal and they will form an ionic compound. Therefore, [tex]{\text{Fe}}{{\text{I}}_{\text{3}}}[/tex] is an ionic compound and will dissociate into ions in water.

The dissociation reaction of [tex]{\text{Fe}}{{\text{I}}_{\text{3}}}[/tex] into ions is as follows:

[tex]{\text{Fe}}{{\text{I}}_{\text{3}}} \to {\text{F}}{{\text{e}}^{{\text{3}} + }} + {\text{3}}{{\text{I}}^ - }[/tex]

Hence, the chemical species present will be [tex]{\text{F}}{{\text{e}}^{{\text{3}} + }}[/tex], [tex]{\text{3}}{{\text{I}}^ - }[/tex] and [tex]{{\text{H}}_{\text{2}}}{\text{O}}[/tex].

(3) [tex]{{\text{C}}_{\text{3}}}{{\text{H}}_{\text{8}}}{\text{O}}[/tex]  

In [tex]{{\text{C}}_{\text{3}}}{{\text{H}}_{\text{8}}}{\text{O}}[/tex] carbon (C), oxygen (O) and hydrogen (H) are nonmetals and form covalent compound. Therefore, [tex]{{\text{C}}_{\text{3}}}{{\text{H}}_{\text{8}}}{\text{O}}[/tex] is a covalent compound and will not dissociate in water. The chemical species present will be [tex]{{\text{H}}_{\text{2}}}{\text{O}}[/tex] and [tex]{{\text{C}}_{\text{3}}}{{\text{H}}_{\text{8}}}{\text{O}}[/tex].

The table that shows the chemical species present in each compound is attached in the image.

Learn more:

1. Which molecule cannot be adequately described by a single Lewis structure/ https://brainly.com/question/6786947?

2. Whether carbon dioxide and water have the same geometry or not: https://brainly.com/question/2176581

Answer details:

Grade: High School

Subject: Chemistry

Chapter: Chemical bonding and molecular structure

Keywords: Ionic, covalent, metal, nonmetal, water, ions, dissociation, C3H8O, FeI3, and C3H6(OH)2.

Ver imagen AkshayG