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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Molarity of solution = 1.6 M
<h3>Further explanation</h3>Given
40 g NaOH
6 L solution
Required
Steps to solve the problem of molarity
Solution
No additional information about the question.
If you want to make the solution above, then we just need to put the existing NaOH (40 g) into 6 L of water, then do the stirring (in a warm temperature above the hot plate will speed up the NaOH dissolving process)
But if you want to know the molarity of a solution, then
- 1. we calculate the moles of NaOH
MW(molecular weight) of NaOH=
Ar Na+ Ar O + Ar H
23 + 16 + 1 = 40 g/mol
so mol NaOH :
- 2. Molarity(M)