Q.10.11 - An Introduction to General, Organic, and Biological Chemistry

Question

1. Write the formula for the conjugate acid for each of the following bases:

a.${\mathrm{CO}}_3^{2-}$  

b.${\mathrm{H}}_2\mathrm{O}$

c. ${\mathrm{H}}_2{\mathrm{PO}}_4^{-}$

d. ${\mathrm{Br}}^{-}$

Step-by-Step Solution

Answer

The formula for the conjugate acids for bases :

(Part a)  ${\mathrm{CO}}_3^{2-}$ is   bicarbonate ion or hydrogen carbonate ion

(Part b) ${\mathrm{H}}_2\mathrm{O}$ is   hydronium ion

(Part c)  ${\mathrm{H}}_2{\mathrm{PO}}_4^{-}$ is phosphoric acid

(Part d)  ${\mathrm{Br}}^{-}$ is hydrobromic acid

Step 1 Intoduction (Part a)

The formula for the conjuate acids for bases :

a.${\mathrm{CO}}_3^{2-}$ is bicarbonate ion or hydrogen carbonate ion

b.${\mathrm{H}}_2\mathrm{O}$ is hydronium ion

c. ${\mathrm{H}}_2{\mathrm{PO}}_4^{-}$ is phosphoric acid

d. ${\mathrm{Br}}^{-}$ is hydrobromic acid

step 2 ( explanation part a )

(a) The formula and name of the conjugate acid for the base ${\mathrm{CO}}_3^{2-}$ is ${\mathrm{HCO}}_3^{-}$  , bicarbonate ion or hydrogen carbonate ion.

Step 3 (explanation b)

(b) The formula and name of the conjugate acid for the base ${\mathrm{H}}_2\mathrm{O}\text{ is }{\mathrm{H}}_3{\mathrm{O}}^{+}\text{, hydronium ion. }$

step 4 (explanation part c )

(c) The formula and name  of the conjugate acid for the base ${\mathrm{H}}_2{\mathrm{PO}}_4^{-} \text{is }{\mathrm{H}}_3{\mathrm{PO}}_4\text{, phosphoric acid. }$

step 5 (explanation part 4)

(d) The formula and name of the conjugate acid for the base Br is HBr, hydrobromic acid.