Certainly! Let's determine the number of carbon atoms in one molecule of vitamin [tex]\( A \)[/tex] based on its chemical formula.
1. The chemical formula for vitamin [tex]\( A \)[/tex] is [tex]\(C_{20}H_{30}O\)[/tex]. This notation tells us the composition of the molecule in terms of the types and numbers of atoms it contains.
2. Look at the subscript numbers following each element in the formula:
- [tex]\(C_{20}\)[/tex] indicates that there are 20 carbon atoms.
- [tex]\(H_{30}\)[/tex] indicates that there are 30 hydrogen atoms.
- [tex]\(O\)[/tex] does not have a subscript number, which means there is 1 oxygen atom.
3. To find the number of carbon atoms in one molecule of vitamin [tex]\( A \)[/tex], we focus on the subscript for the carbon element [tex]\(C\)[/tex].
4. The subscript next to carbon [tex]\(C\)[/tex] is 20.
Therefore, there are [tex]\(20\)[/tex] atoms of carbon in one molecule of vitamin [tex]\(A\)[/tex].
[tex]\[
\boxed{20}
\][/tex]
