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1 year ago

What multiplicities are observed for the signals in the off-resonance decoupled 13c nmr spectrum of (2e)-3-chloro acrylaldehyde?

1 answer:

8 0

The multiplicities that are observed for the signals in the off-resonance decoupled 13c nmr spectrum of (2e)-3-chloro acrylaldehyde is a singlet, a triplet, and a quartet. The correct option is E.

<h3>What is off-resonance decoupling?</h3>

Off-resonance decoupling is a process of removing all hydrogen and carbon coupling from a signal except for the place which is near the nucleus or joined with the nucleus.

In NMR also, the coupling of hydrogen and carbon is removed except for the place near the nucleus.

Thus, the correct option is E) a singlet, a triplet, and a quartet.

To learn more about off-resonance, refer to the link:

brainly.com/question/28169200

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The question is incomplete. Your most probably complete question is given below:

A) 2 singlets and a doublet

B) a singlet and 2 doublets

C) 3 singlets

D) a singlet, a doublet, and a triplet

E) a singlet, a triplet, and a quartet

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Complete the hybridization and bonding scheme for xef4.

Vikentia [17]

<span>Xe = VIII = 8 valence electrons
F = VII = 4 (7 ve) = 28 valence electrons</span>

total ve = 8 + 28 = 36 ve

<span>36 - 4(2) = 28 ve
(there are 2 electrons in each bond x 4 bonds)</span>

<span>28 - 4(6) = 4
(We assign the remaining electrons to F atoms)</span>

<span>4 - 2(2) = 0
(Therefore 4 electrons left => we have 2 lone pairs)</span>

The steric number = No. of σ bonds + #lone pairs

= 4 σ bonds + 2 lone pairs = 6 => d²sp³ (6 hybrid orbitals)

<span>4 bonds + 2 lone pairs => square planar</span>

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3 years ago

There are three known forms of uranium. These forms are called _____ of each other. a. isotopes b. copies c. triplicates d. mole

KIM [24]

The answer is isotopes<span>. Isotopes are different kind of atoms of the same element. Elements are identified by the number of protons in the nucleus (atomic number), so all the aoms of uranium have the same number of protons. When one element can have atoms with different number of neutrons (which is pretty normal) the different forms are called isotopes. So, isotopes are different versions of the same element which differentiate from each other in the number of neutrons.</span>

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3 years ago

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Which compound is classified as a hydrocarbon?

Andrej [43]

<span>(2) butynu........................</span>

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3 years ago

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Atoms of different chemical elements can be differentiated based on the number of.

Alona [7]

The atoms of different chemical elements can be differentiated based on the number of protons.

Each chemical element is differentiated by his number of protons. This number of protons is also knowing as atomic number and it is represented by the letter (Z).

The atomic number represented the number of protons in the nucleus of an element. For example:

The element that has only 1 proton in his nucleus is Hydrogen atom.
The element that has 2 protons in his nucleus is Helium atom.

The atom is the smallest part of the composition of matter, it is indivisible and is composed of a nucleus that has protons and neutrons, and around the nucleus there are the electrons.

Learn more about the atom at: brainly.com/question/17545314

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1 year ago

What is the ratio of the diffusion rates of cl2 and o2? rate cl2 : o2 = 0.47 0.67 0.45 0.69 1.5?

matrenka [14]

The ratio of the diffusion rate of Cl2 and O2 is 1.5

calculation
rate of diffusion Cl2/ rate of diffusion O2 =√ molar mass of Cl2/ molar mass of O2

molar mass of Cl2 = 35.5 x2 = 71 g/mol
molar mass O2 = 16 x2 =32g/mol

that is rate of diffusion Cl2/ rate of diffusion of O2 =√ 71/ 32= 1.5

7 0

3 years ago