Question

What is the formula of silver acetate?
A) \[C{H_3}COOAg\]
B) \[C{H_3}COOAu\]
C) \[AgN{O_3}\]
D) None of these

Answer 1

Hint: We have to remember that the silver is an element in periodic table having atomic symbol \[Ag\]. Molar mass of silver acetate is $166.912g/mol$. Nitrate is a molecule that is made up of nitrogen and oxygen atoms. It is basically an anion which carries negative charge therefore the molecular formula of silver nitrate is easy to identify in this question.

Complete answer:
We have to remember that the silver has an atomic symbol \[Ag\] having an atomic number $47$. It belongs to d block elements i.e. transition elements.
Acetate is a function group having formula \[C{H_3}CO{O^ - }\] having negative charge.
Acetic acid dissociates itself into acetate ion and a proton.
\[C{H_3}COOH \to C{H_3}CO{O^ - } + {H^ + }\]
Formula for silver acetate can be \[C{H_3}COOAg\]
\[C{H_3}CO{O^ - } + A{g^ + } \to C{H_3}COOAg\]
Structural formula for \[C{H_3}COOAg\] can be represented as:

Option A) this is a correct option as the formula for silver acetate is \[C{H_3}COOAg\] which is correct in the given option.
Option B) This is an incorrect option as the formula for silver acetate is not \[C{H_3}COOAu\] as \[Au\] is an atomic symbol of gold.
Option C) this is an incorrect option as the chemical name of \[AgN{O_3}\] is silver nitrate and not silver acetate.
Option D) this is an incorrect option as we got option A as the correct option.

Note:
We have to remember that the acetate is a functional group having negative charge. It is formed when acetic acid dissociates into acetate and a proton. Silver is an element having atomic symbol \[Ag\] and atomic number $47$. Nitrate also carries a negative charge on it, thus it is not considered as a neutral molecule same goes with acetate.