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1. Write the chemical formula for the ionic compounds formed from combinations o

ID: 492617 • Letter: 1

Question

1. Write the chemical formula for the ionic compounds formed from combinations of the following ions.  

Is this all right? Please let me know. I am unsure about the cation number of moles in cmpd and anion number of moles in compound sections.

Cation

Formula/Symbol

Cation

Number of moles in cmpd

Anion

Formula/Symbol

Anion

Number of moles in cmpd

Compound

Potassium & hydroxide

K+

1

OH-

1

KOH

Lead (I) & sulfate

Pb+

2

SO32-

1

Pb2SO3

Ammonium & permanganate

NH4+

1

MnO4-

1

NH4MnO4

Barium & acetate

Ba2+

1

C2H3O2-

2

Ba(C2H3O2)2

Ammonium & phosphate

NH4+

3

PO43-

1

(NH4)3PO4

Nickel & chlorite

Ni2+

1

ClO2-

2

Ni(ClO2)2

Magnesium & acetate

Mg2+

1

C2H3O2-

2

Mg(C2H3O2)2

Aluminum & carbonate

Al3+

2

CO32-

3

Al2(CO3)3

Strontium & sulfate

Sr2+

2

SO42-

2

SrSO4

Sulfur hexafluoride

SF6

Gold (III) & oxide

Au3+

2

O2-

3

Au2O3

Cation

Formula/Symbol

Cation

Number of moles in cmpd

Anion

Formula/Symbol

Anion

Number of moles in cmpd

Compound

Potassium & hydroxide

K+

1

OH-

1

KOH

Lead (I) & sulfate

Pb+

2

SO32-

1

Pb2SO3

Ammonium & permanganate

NH4+

1

MnO4-

1

NH4MnO4

Barium & acetate

Ba2+

1

C2H3O2-

2

Ba(C2H3O2)2

Ammonium & phosphate

NH4+

3

PO43-

1

(NH4)3PO4

Nickel & chlorite

Ni2+

1

ClO2-

2

Ni(ClO2)2

Magnesium & acetate

Mg2+

1

C2H3O2-

2

Mg(C2H3O2)2

Aluminum & carbonate

Al3+

2

CO32-

3

Al2(CO3)3

Strontium & sulfate

Sr2+

2

SO42-

2

SrSO4

Sulfur hexafluoride

SF6

Gold (III) & oxide

Au3+

2

O2-

3

Au2O3

Explanation / Answer

Answer:

Cation

Formula/Symbol

Cation

Number of moles in cmpd

Anion

Formula/Symbol

Anion

Number of moles in cmpd

Compound

Potassium & hydroxide

K+

1

OH-

1

KOH

Lead (I) & sulfate

Pb+

2

SO32-

1

Pb2SO3

Ammonium & permanganate

NH4+

1

MnO4-

1

NH4MnO4

Barium & acetate

Ba2+

1

C2H3O2-

2

Ba(C2H3O2)2

Ammonium & phosphate

NH4+

3

PO43-

1

(NH4)3PO4

Nickel & chlorite

Ni2+

1

ClO2-

2

Ni(ClO2)2

Magnesium & acetate

Mg2+

1

C2H3O2-

2

Mg(C2H3O2)2

Aluminum & carbonate

Al3+

2

CO32-

3

Al2(CO3)3

Strontium & sulfate

Sr2+

2

SO42-

2

SrSO4

Sulfur hexafluoride

SF6

Gold (III) & oxide

Au3+

2

O2-

3

Au2O3

NOTE : 2) Lead(I) & Sulphate : SO42-   Formula : Pb2SO4.

Sulphite : SO32-. formula : Pb2SO3.

See speling and make change accordingly.

Rest all the formulae are correct. I just corrected the writing style i.e. superscript and lowerscripts added.

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Cation

Formula/Symbol

Cation

Number of moles in cmpd

Anion

Formula/Symbol

Anion

Number of moles in cmpd

Compound

Potassium & hydroxide

K+

1

OH-

1

KOH

Lead (I) & sulfate

Pb+

2

SO32-

1

Pb2SO3

Ammonium & permanganate

NH4+

1

MnO4-

1

NH4MnO4

Barium & acetate

Ba2+

1

C2H3O2-

2

Ba(C2H3O2)2

Ammonium & phosphate

NH4+

3

PO43-

1

(NH4)3PO4

Nickel & chlorite

Ni2+

1

ClO2-

2

Ni(ClO2)2

Magnesium & acetate

Mg2+

1

C2H3O2-

2

Mg(C2H3O2)2

Aluminum & carbonate

Al3+

2

CO32-

3

Al2(CO3)3

Strontium & sulfate

Sr2+

2

SO42-

2

SrSO4

Sulfur hexafluoride

SF6

Gold (III) & oxide

Au3+

2

O2-

3

Au2O3