Q. 6.36 - An Introduction to General, Organic, and Biological Chemistry

Question

Write the formula, including the charge for each of the following polyatomic ions :

a. nitrite              b. sulfite

c. hydroxide       d. acetate

Step-by-Step Solution

Answer

a. The formula of nitrite is ${\mathrm{NO}}_2^{-}$

b. The formula of sulfite is ${\mathrm{SO}}_3^{2-}$

c. The formula of hydroxide is ${\mathrm{OH}}^{-}$

d. The formula of acetate is ${\mathrm{C}}_2{\mathrm{H}}_3{\mathrm{O}}_2^{-}$

Part (a) Step 1 : Given information

We have to write the formula of nitrite including charge.

Part (a) Step 2 : Simplification

• We know that nitrite is composed of $\mathrm{N}$(nitrogen) and $\mathrm{O}$(oxygen)
• So, the Chemical formula of  nitrite is ${\mathrm{NO}}_2^{-}$
  

Part (b) Step 1 : Given information

We have to write the formula of sulfiteincluding charge.

Part (b) Step 2 : Simplification

• We know that sulfite is composed of $\mathrm{S}$(Sulphur) and $\mathrm{O}$(oxygen)
• So, the Chemical formula of  sulfite is ${\mathrm{SO}}_3^{2-}$
  

Part (c) Step 1 : Given information

We have to write the formula of hydroxide including charge.

Part (c) Step 2 : Simplification

• We know that hydroxide is composed of $\mathrm{H}$(hydrogen) and $\mathrm{O}$(oxygen)
• So, the Chemical formula of  hydroxide is ${\mathrm{OH}}^{-}$
  

Part (d) Step 1 : Given information

We have to write the formula of acetate including charge.

Part (d) Step 2 : Simplification

• We know that acetate is composed of $\mathrm{C}$(carbon) , $\mathrm{H}$(hydrogen) and $\mathrm{O}$(oxygen)
• So, the Chemical formula of  acetate is ${\mathrm{C}}_2{\mathrm{H}}_3{\mathrm{O}}_2^{-}$