Oxaloacetic acid, an important intermediate in food metabolism, has the formula C4H4O5 and contains three C=O bonds and two O-H
bonds. Propose the two most stable possible Lewis structures. (Show all lone pairs)
1 answer:
Answer:
The most stable possible Lewis structures are in the picture
Explanation:
In the left of the picture are three C=O bonds and two O-H bond. By formula C₄H₄O₅ there are missing two hydrogens and one carbon that most be a methylene group (CH₂). Thus, the most logical ways to bond the substructures are drawing in the picture having in mind that O-O bond are not stable.
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According to Avogadro's number there are 62.53 atoms of chlorine in 1.1x 10 moles of Cl atoms.
Avogadro's number is defined as a proportionality factor which relates number of constituent particles with the amount of substance which is present in the sample.
According to the definitions, Avogadro's number depend on determined value of mass of one atom of those elements.It bridges the gap between macroscopic and microscopic world by relating amount of substance with number of particles.
Number of atoms can be calculated using Avogadro's number as follows: mass/molar mass×Avogadro's number or number of moles×Avogadro's number.
ON substitution in above formula number of atoms=1.1×10²¹×6.023×10²³=62.53 atoms
Thus, there are 62.53 chlorine atoms in 1.1x 10 moles of Cl atoms.
Learn more about Avogadro's number,here:
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