1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Svetach [21]
3 years ago
10

In which region of the carbon-13 NMR spectrum would you expect to find a resonance for the carbonyl group of an aliphatic ketone

? The given chemical shift ranges are approximate.
A. 50-80 ppm
B. 180-210 ppm
C. 100-150 ppm
D. 65-85 ppm
E. 9-10 ppm
F. 110-170 ppm
Chemistry
1 answer:
Mkey [24]3 years ago
6 0

Answer:

Option B 180-210 ppm

Explanation:

C-13 NMR tells about the carbon skeleton and it is similar to proton NMR. Reference compound in C-13 NMR is tetramethylsilane (TMS) in which chemical shift of carbon is considered to be 0.0 ppm.

Chemical shift of carbon having different hybridization is different.

For example, chemical shift of sp3 hybridized carbon is in the region of 0 to 90 ppm.

Chemical shift of sp2 hybridized carbon is in the region of  110 to 220 ppm.

In aliphatic ketone, the carbolyl carbon atom is sp2 hybridized. So, C-13 chemical chemical shift range for carboly carbon is 110-220 ppm

Therefore, among the given option, option B is correct.

You might be interested in
Choose the BEST answer from the four options A, B, C, or D: Due to which property of LPG are we asked to close the valve of the
Mama L [17]

Answer:

A

Explanation:

We are usually asked to close the valve of the gas cylinder in our various kitchens at home <u>due to the inflammable property of the Liquified Petroleum Gas.</u>

<em>Without closing the valve, the LPG would diffuse into our homes, and any form of spark would cause an explosion and lead to a fire. Lives and properties could be lost in the process.</em>

The correct option is A.

4 0
2 years ago
Give an example of a non-biological chemical reaction that involves carbon. Name the process that converts a solid compound into
xxMikexx [17]

Answer:

The process that converts a solid mcompound into a gas is sublimation.

E.g- dry ice, solid iodine and ammonium salts

when the above solid are heated, only particles which are found on the surface of the solid gain enough energy and break all forces of attraction and form a gas.

Explanation:

6 0
2 years ago
How could you “supersaturate” solutions, exceeding the amount of dissolved solute possible
Bingel [31]

Answer:

Explanation:

In a saturated solution, more solute cannot be dissolved at a given temperature.

This is because, the solute dissolves in a solvent because of space between particles of solvent but on continuous addition of solute, the space between the solvent particles gets fulfilled. Thus no more solute particle can dissolve in a solvent.

4 0
2 years ago
Which two factors contributed to the extinction of many large mammals over the last several million years, including woolly mamm
Advocard [28]

Answer:

Explanation:

loss of habitat and contact with humans

4 0
3 years ago
Read 2 more answers
4. A galvanic cell is formed when two metals are immersed in solu- tions differing in concentration 1 when two different metals
emmasim [6.3K]

A galvanic cell is formed when two metals are immersed in solutions differing in concentration 1 when two different metals are immersed.

<h3>What is galvanic cell?</h3>

A galvanic cell is an electrochemical device that transforms chemically generated free energy into electrical energy. A photogalvanic cell produces photochemical species that react to produce an electrical current when connected to an external circuit.

<h3>How does galvanic cell works?</h3>

In order to create a pathway for the flow of electrons via this wire, the galvanic cell makes use of the ability to split the flow of electrons during the processes of oxidation and reduction, forcing a half-reaction and linking each with a wire.

An electrochemical device known as a galvanic cell converts chemical energy from a spontaneous redox response into electrical energy. It possesses an electrical potential of 1.1 V. The anode, which is a negative plate in galvanic cells, is where oxidation takes place. It is a positive plate where lessening takes place.

To learn more about galvanic cell visit:

brainly.com/question/13031093

#SPJ4

8 0
1 year ago
Other questions:
  • Which of the following are building blocks of elements A. Atoms B. Protons C. Ions 2. Atoms are made up of A. Air,water,soil B.
    7·1 answer
  • Help me please somebody ??
    11·1 answer
  • A parchment fragment was discovered that had about 68% as much 14C radioactivity as does plant material on Earth today. Estimate
    6·1 answer
  • What accident led percy julian to discover the method to separate progesterone from soybean oil?
    12·1 answer
  • You are given a 1.50 g mixture of sodium nitrate and sodium chloride. you dissolve this mixture into 100. ml of water and then a
    14·1 answer
  • How much space does 2 x 1022 atoms of copper take up?
    7·1 answer
  • How many valence electrons does Arsenic have?
    9·1 answer
  • Woh want to do a long distance relationship with me
    13·1 answer
  • What s the highest viscosity?
    5·2 answers
  • Rosa was looking for patterns to help predict the products of chemical reactions. She recorded three similar decomposition react
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!