Aspirin synthesis involves the addition of an acetyl group to salicylic acid in a condensation reaction with an alcohol. The acetyl group could be added with a carboxylic acid but the preferred procedure is to use the acid anhydride. Why is preferable to use an acid anhydride for ester formation with an alcohol rather than a carboxylic acid? Select one: Carboxylic acids react with water in an undesired side reaction. Acid anhydrides are generally easier and safer to handle than carboxylic acids. Carboxylic acids change the pH of the solution too much for the reaction to proceed. Acid anhydrides are less stable than esters so the equilibrium favors the ester product.

Answers

Answer 1

Answer:

The correct appropriate will be Option 1 (Acid anhydrides are less stable than esters so the equilibrium favors the ester product.)

Explanation:

Acid anhydride, instead of just a carboxyl group, is typically favored for esterification. The predominant theory would be that Anhydride acid is somewhat more volatile than acid. This is favored equilibrium changes more toward the right of the whole ester structure. Extremely responsive than carboxylic acid become acid anhydride as well as acyl chloride. Thus, for esterification, individuals were most favored.

The other options offered are not relevant to something like the scenario presented. So, the solution here is just the right one.


Related Questions

what is the difference between luster and dull

Answers

Explanation:

Luster means Shiny. Dull means simple and not full of detail. Hope this helps!Please Rate Brainiest!

-Aslina

The diagram shows a balloon that was rubbed with a piece of cloth what is the change

Answers

Answer: the electric charge

Explanation:

Forecasting the weather for a specific area is relatively easy because of all the technology that is available.
A. True
B. False

Answers

Answer:

A

Explanation:

The answer is “A” true

As the vibration of molecules increases, the _____ of the substance increases.

temperature

internal energy

kinetic energy

all of the above

Answers

Answer:

Answer option D- all of the above

How many types of rocks can form from the rock cycle?
0 1
02
O 3
04

Answers

3 types of rocks. Sedimentary, igneous and metamorphic

Answer:

Sedimentary, igneous and metamorphic

Metomorphic, heat and pressure

Sedimentary erosion and weather

Igneous magma and lave

So three!

PLEASE HELP ASAP! WILL MARK YOU AS BRAINLIEST!!!

Answers

Answer:

what are the options?

Explanation:

Hope is testing a substance using blue litmus paper. The paper turns red. The substance is _____.
a neutral
an acid
a base

Answers

Answer:

the substance is an acid

The volume of an ideally behaving gas is 300 L at 227°C. What volume will the gas occupy at 27°C when pressure remains constant?

Answers

Answer:

[tex]V_2=35.68\ L[/tex]

Explanation:

Initial volume, V₁ = 300 L

Temperature, T₁ = 227°C

New temperature, T₂ =  27°C

We need to find the volume of gas occupied when the temperature is 27°C.

It is based on Charle's law. A/c to Charle's law,

[tex]V\propto T[/tex] (at constant pressure)

[tex]\dfrac{V_1}{V_2}=\dfrac{T_1}{T_2}\\\\V_2=\dfrac{V_1T_2}{T_1}\\\\V_2=\dfrac{300\times 27}{227}\\\\V_2=35.68\ L[/tex]

Hence, the new volume is 35.68 L.

A lead ball has a mass of 5.910 g and a diameter of 10.0 mm. What is the density of lead in grams per cubic centimeter

Answers

Answer:

Explanation:

The formula is density = mass÷volume

Values given are:

mass = 5.910g  and

diameter = 10.0 mm = 1cm

so, we need to find the volume first.

Volume of a sphere is (4/3)πr³

thus, V = 4.189 cm³

Density = mass ÷ volume

density = 5.910 ÷ 4.189

= 1.411 g/cm³

which element has the largest atomic radii in the 3rd period of the periodic table?

Answers

Answer:

Sodium (Na)

Explanation:

Which process occurs in a fission nuclear reactor?
Nuclei combine.
Nuclei split apart.
Neutrons combine.
Neutrons split apart.

Answers

Answer:

Nuclear fission/ split apart

Explanation:The process of splitting a nucleus is called nuclear fission and is used in nuclear power reactors. Fission is another word for splitting.

Hope this helps! brainlyeast would only be necessary if this helped you thanks! :) have a good day!

Answer:

The correct answer is B. Nuclei split apart

Explanation:

EDGE2022

How do changes in population size relate to environmental conditions?

Answers

Answer:

No simple relationship exists between population size and environmental change. However, as global population continues to grow, limits on such global resources as arable land, potable water, forests, and fisheries have come into sharper focus.

Explanation:

Hello. Is there certain answers or do you have to explain? I can try to explain as best as possible from my knowledge!

So, Population density is the average number of individuals per unit of area or volume. So as you know we use cars of a source of transportation and cars also cause pollution along with the people and factories this would mean that the amount of people could impact the environment based on how little or how much people are there as of the trash in the sea and much more and this may also harm our ozone layer that protects us from radiation cause to much sunlight leading to dryer areas less food and water etc. :) hope it helps!!

How many atoms of each element are in 4Na3PO4?

Answers

Answer:

12 sodium 4 phosphorus 16 oxygen.  makes the table below to determine the number of atoms of each element in the chemical formula 4Ca(ClO3)2.

12 sodium 16 oxygen 4 phosphorus

what is one beneift of using scientific notation instead of regular notation

Answers

Answer:

its shorter than a regular one

Explanation:

the only reason is simply because it is shorter

6. Which of the following units would be MOST appropriate for measuring
the length of a car?*
1 poin
A. Millimeters
B. Centimeters
C. Meters
D. Kilometers
7. Which of the following units would be MOST appropriate for measuring
1 point

Answers

Answer:

Meter

Explanation:

Electro magnetic waves are blank waves

What’s the blank PLEASE HELP DUE IN 25 MINUTES!!!!

Answers

Answer:

Electromagnetic waves or EM waves are waves that are created as a result of vibrations between an electric field and a magnetic field. Hope it helps ;)

How many valence electrons would be used in drawing the Lewis Structure CF4?

Answers

Answer:

32

Explanation:

You have 7 valance electrons in fluorine, and you have 4 of them. 7*4=28. Then, you have 4 valance electrons on carbon. So 28+4=32

It’s 32
Make it a brainliest answer

If a solid has a density greater than 1 g/ml will it sink or float?

Answers

Answer:

if an object weighs more than an equal volume of water, it is more dense and will sink, and if it weighs less than an equal volume of water, it is less dense and will float. Remember that the density of water is about 1 g/cm3.

are all physical reactions reversible?

A) No, while some such as freezing are, others, such as breaking glass aren't.

B) Yes, every single one of them are!

Answers

Answer: answer is A

Explanation:

What is the energy of a photon of red light having a frequency of 3.08 x 10^14 HZ?​

Answers

Answer:

2.04 x 10⁻¹⁹J

Explanation:

Given parameters:

  Frequency = 3.08 x 10¹⁴Hz

Unknown:

The energy of the photon  = ?

Solution:

 The energy of a photon is given as;

          E = hf

Where h is the planck's constant

            f is the frequency

Insert the parameters and solve;

           E = 6.63 x 10⁻³⁴ x 3.08 x 10¹⁴

          E = 20.4 x 10⁻³⁴⁺¹⁴

           E = 20.4 x 10⁻²⁰  = 2.04 x 10⁻¹⁹J

Answer:

2.97*10-19 j

Explanation:

E=Energy of photon

H=Planck constant=6.626*10-34

V=Frequency of photon

we can plug what we already know E=(6.626*10-34)(4.48*10 14)


If you change a substance into a new substance

Answers

Answer:

Explanation: Chemical changes  cause a substance to change into an entirely substance with a new chemical formula. And chemical changes are also known as chemical reaction.

A student read that a block has a density of .70g/cm^3. When she tested this she got .63g/cm^3. What is her percent error

Answers

Answer:

The answer is 10 %

Explanation:

The percentage error of a certain measurement can be found by using the formula

[tex]P(\%) = \frac{error}{actual \: \: number} \times 100\% \\ [/tex]

From the question

actual density = 0.7 g/cm³

error = 0.7 - 0.63 = 0.07

So we have

[tex]p(\%) = \frac{0.07}{0.7} \times 100 \\ = 10[/tex]

We have the final answer as

10%

Hope this helps you

Which molecule would have this shape?

Answers

Answer:

CO2

Explanation:

the subscript tells you how many of one element is used for this case there is one black atom and 2 red ones so you only need 1 carbon and 2 oxygens.

hope this helps. brainliest please?

after felix adds salt to the boiling water what will he have in the pot

Answers

Answer:

Salty water

Explanation:

Sorry for wasting your time.

What mass of NH4NO3 would you need to make 250.0mL of a 0.78M solution?

A) 0.20 g

B) 13g

C) 16g

D)2.5x102g

Answers

Answer:

a

Explanation:

The answer would be A.)
Hope this helps


Plzzzzz help me answer this question (WILL AWARD BRAINLIEST)

Answers

The correct answer is b

A reaction where heat is added is a(n)
endothermic reaction
heterogeneous reaction
reversible reaction

Answers

in endothermic reaction heat is added

The scientific theory of plate tectonics states that the Earth's crust is composed of many plates, or slabs of rock. Interactions of these plates have created different landforms, or geologic features. Which of the following statements provides evidence for this theory?
A.
A large earthquake off the coast of Japan induces a wave that is over twenty feet high.
B.
An iceberg buckles the hull of the Titanic and allows water to enter between the steel plates.
C.
The city of Pompeii is perfectly preserved under volcanic ash following the eruption of Mount Vesuvius.
D.
Fossilized marine creatures can be found at the top of the Himalayan Mountains.

Answers

Answer:

study island

proof

Explanation:

Fossilized marine creatures found at the top of the Himalayan Mountains provide evidence for a scientific theory of plate tectonics. Therefore, option (D) is correct.

What is Plate tectonics?

Plate tectonics can be explained as the Earth's lithosphere being made of a large number of tectonic plates that have been slowly moving since about 3.4 billion years ago.

The lithosphere is broken into 7 or 8 major plates and many minor plates or "platelets". These plates meet, and their relative motion evaluates the kind of plate boundary: convergent, transform, or divergent.

Mountain-building, Earthquakes, volcanic activity, and oceanic trench formation take place along these plate boundaries. The relative annual movement of the plates ranges from 0 to 10 cm.

Tectonic plates are comprised of the oceanic and the thicker continental lithosphere. The process of subduction which is actually one plate moving under another carries the edge of the lower plate down into the mantle along convergent boundaries.

Pebbles, Shells, and marine fossils found in the limestone beds of the tallest Himalayas Mountains give evidence of the theory of plate tectonics.

Learn more about plate tectonics, here:

brainly.com/question/19317822

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Modeling Nuclear changes

Answers

Answer:

can someone please do this and put the answers below !!!!

Explanation:

Which of the following identifies the type of radiation that scientists most likely observed?
Radio
Infrared
Ultraviolet
Gamma Rays

Answers

Answer:gamma rays

Explanation:

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