The diagram shows the skeletal formula of citric acid. What is the molecular formula of citric acid?
A.
\(\mathrm{C}_{6} \mathrm{H}_{8} \mathrm{O}_{7}\)
B.
\(\mathrm{C}_{6} \mathrm{H}_{4} \mathrm{O}_{7}\)
C.
\(\mathrm{C}_{8} \mathrm{H}_{8} \mathrm{O}_{7}\)
D.
\(\mathrm{C}_{10} \mathrm{H}_{8} \mathrm{O}_{7}\)
Exam No：9701_s24_qp_11 Year：2024 Question No：27
Answer:
A
Knowledge points:
4.1.1 explain the origin of pressure in a gas in terms of collisions between gas molecules and the wall of the container
4.1.2 understand that ideal gases have zero particle volume and no intermolecular forces of attraction
4.1.3 state and use the ideal gas equation pV = nRT in calculations, including in the determination of
Solution:
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