Q. 6.41 - An Introduction to General, Organic, and Biological Chemistry

Question

Write the correct formula for the following ionic compounds :

a. barium hydroxide          b. sodium hydrogen sulfate

c. iron(II) nitrite                   d. zinc phosphate

e. iron(III) carbonate

Step-by-Step Solution

Answer

a. The correct formula of the ionic compound barium hydroxide is $\mathrm{Ba}{\left(\mathrm{OH}\right)}_2$

b. The correct formula of the ionic compound sodium hydrogen sulfate  is ${\mathrm{NaHSO}}_4$

c. The correct formula of the ionic compound iron(II) nitrite  is $\mathrm{Fe}{\left({\mathrm{NO}}_2\right)}_2$

d. The correct formula of the ionic compound zinc phosphate  is ${\mathrm{Zn}}_3{\left({\mathrm{PO}}_4\right)}_2$

e. The correct formula of the ionic compound iron(III) carbonate  is ${\mathrm{Fe}}_2{\left({\mathrm{CO}}_3\right)}_3$

Part (a) Step 1 : Given information

We have to write the name of barium hydroxide ionic compound.

Part (a) Step 2 : Simplification

• We know that ${\mathrm{Ba}}^{2+}$ is Barium and ${\mathrm{OH}}^{-}$ is hydroxide.
•  So, the correct formula of the ionic compound barium hydroxide is  $\mathrm{Ba}{\left(\mathrm{OH}\right)}_2$
  

Part (b) Step 1 : Given information

We have to write the name of sodium hydrogen sulfate ionic compound.

Part (b) Step 2 : Simplification

• We know that ${\mathrm{Na}}^{+}$ is sodium , ${\mathrm{H}}^{+}$ is hydrogen and ${\mathrm{SO}}_4^{2-}$ is sulphate.
•  So, the correct formula of the ionic compound sodium hydrogen sulfate  is ${\mathrm{NaHSO}}_4$
  

Part (c) Step 1 : Given information

We have to write the name of iron(II) nitrite ionic compound.

Part (c) Step 2 : Simplification

• We know that ${\mathrm{Fe}}^{3+}$ is iron and ${\mathrm{NO}}_3^{-}$ is nitrite.
• So, the correct formula of the ionic compound iron(II) nitrite  is $\mathrm{Fe}{\left({\mathrm{NO}}_3\right)}_3$
  

Part (d) Step 1 : Given information

We have to write the name of zinc phosphate ionic compound.

Part (d) Step 2 : Simplification

• We know that ${\mathrm{Zn}}^{2+}$ is zinc and ${\mathrm{PO}}_4^{-}$ is phosphate.
• So, the correct formula of the ionic compound zinc phosphate  is $\mathrm{Zn}{\left({\mathrm{PO}}_4\right)}_2$
  

Part (e) Step 1 : Given information

We have to write the name of iron(III) carbonate  ionic compound.

Part (e) Step 2 : Simplification

• We know that ${\mathrm{Fe}}^{3+}$ is iron and ${\mathrm{CO}}_3^{2-}$ is carbonate.
•  So, the correct formula of the ionic compound iron(III) carbonate  is ${\mathrm{Fe}}_2{\left({\mathrm{CO}}_3\right)}_3$