How to solve this!! plz , i have an exam tommorow
2 answers:
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Answer:
See picture below
Explanation:
To do this, we first need to know how are the bonds in this molecule are. To do so, let's calculate the number of insaturations in the molecule:
n°I = C+1 - (H-N+X)/2
These numbers indicate if the molecule has double bond, triple bond, ring, cyclo, among other options:
n°I = 3 - (3+1)/2
n°I = 1
As it's a very small molecule, we can assume this molecule only have a double bond, and it's an alkene.
So the lewis structure, shows the electrons and the bonding, and also shows the unshared electron pairs, depending on how much electron have each molecule.
In the case of carbon:
[C] = [He] 2s2 2p2 ----> 4 electrons
[H] = 1s1 ----> 1 electron
[Cl] = [Ne] 3s2 3p5 ----> 7 electrons.
Therefore, we also know that Carbon has a double bond, so, the main molecule would have something like this:
C = C
so next to the carbons, we can put two hydrogens and in the other carbon, the chlorine and the remaining hydrogen.
See picture below for structure:
<u>Answer:</u> The volume of isopropyl alcohol present is 254.4 mL and the volume of water present is 540.6 mL
<u>Explanation:</u>
We are given:
32.0 % (v/v) alcohol solution
This means that 32 mL of isopropyl alcohol is present in 100 mL of solution
Volume of water = 100 - 32 = 68 mL
Volume of solution given = 795 mL
Applying unitary method:
In 100 mL of solution, the volume of isopropyl alcohol present is 32 mL
So, in 795 mL of solution, the volume of isopropyl alcohol present will be =
Volume of water in given amount of solution = 795 - 254.4 = 540.6 mL
Hence, the volume of isopropyl alcohol present is 254.4 mL and the volume of water present is 540.6 mL