Question

1. which of the following is the correct chemical formula for arsenic acid?

a. $\ce{aso4}$
b. $\ce{h3aso4}$
c. $\ce{haso3}$
d. $\ce{h3as}$
problems on the back.

Explanation:

Arsenic acid is an oxoacid. Its structure consists of arsenic in a +5 oxidation state bonded to oxygen and hydrogen atoms, with the established chemical formula being $\text{H}_3\text{AsO}_4$. This matches option b, while the other options do not correspond to the correct composition of arsenic acid.

Answer:

b. $\text{H}_3\text{AsO}_4$