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
damaskus [11]
3 years ago
7

When ethyl acetoacetate (ch3coch2co2ch2ch3) is treated with one equivalent of ch3mgbr, a gas is evolved from the reaction mixtur

e, and after adding aqueous acid, ethyl acetoacetate is recovered in high yield. identify the gas formed and explain why the starting material was recovered in this reaction. be sure to answer all parts?

Chemistry
1 answer:
pashok25 [27]3 years ago
6 0
The protons of methylene group between the two carbonyl groups in ethylacetoacetate are acidic in nature. When compounds containing such acidic protons are treated with bases the loose proton and form enolates.

In this particular example when ethylacetoacetate is reacted with methyl magnesium bromide, the methyl group abstracts the acidic proton and converts into methane gas. The enolate when hydrolyzed is again converted into ethylacetoacetate as shown below,

You might be interested in
8. When a 2.5 mol of sugar (C12H22O11) are added to a certain amount of water the boiling point is raised by 1 Celsius degree. I
Julli [10]

Hey there!:

8) ΔTb = i*Kb*m  

 m is molality

 Since same number of mol is added to same amount of water in both cases

m will be same for both

is 1 for glucose since it is covalent compound

is 4 of Al(NO3)3 as it breaks into 1 Al₃⁺ and 3 NO₃⁻

So,  ΔTb will be 4 times in aluminum nitrate case

So, boiling point will change by 4ºC


9) use Q = m*  L

L =  heat of vaporization so:

T1=T2=100ºC

5.40 * 1000 => 5400  cal/g

Q =   5400 / 540

Q = 10 grams


Hope that thlps!

5 0
3 years ago
2. Which of the following is true about a carbonated soft drink?. . The carbon dioxide is the solvent, and water is the solute..
const2013 [10]
A carbonated soft drink hs a large amount of water dissolved with ample amount of carbon dioxide. In this case, the solvent is water and carbon dioxide is the solute. In 2, for the reaction <span>CH3COOH = CH3COO + H+, CH3COOH is a Bronsted-Lowry acid because it releases a proton which is H+. </span>
3 0
3 years ago
Read 2 more answers
Sulfur,Iodine,.Carbon,Hydrogen put these lowest to highest
natima [27]

Answer:

The order is Hydrogen, Carbon, Sulfur, Iodine

Explanation:

According to the periodic table. The order is Hydrogen, Carbon, Sulfur, Iodine. You can search up an image of a periodic table, it will help you.

7 0
3 years ago
Please Answer ASAP
adelina 88 [10]

The answer to this question would be S2o6 which is C.


3 0
3 years ago
Read 2 more answers
Please?????????? ????
natka813 [3]
The causes of mass extinction
As there might be marks on fossils showing the suffering that happened to it!
3 0
3 years ago
Other questions:
  • A compound that conducts an electric current in aqueous solution or in the molten state.
    10·1 answer
  • A piece of unknown metal with mass 30 g is heated to 110.0 °C and dropped into 100.0 g of water at 20.0 °C. The final temperatur
    12·1 answer
  • Which two atoms could be the "before'' and ''after'' of an alpha ejection
    9·1 answer
  • Which colors form part of the color wheel?
    5·1 answer
  • What is the purpose of adding phenolphthalein to your Erlenmeyer flask prior to starting a titration?
    11·1 answer
  • A 15.33 g sample of magnesium oxide is found to contain 12.67 g of magnesium. What is the percent (by mass) composition of the m
    8·1 answer
  • 1. What volume of a 2.50M Kl(aq) is needed to make 200 ml of a 1.OOM KI)aq)?
    6·1 answer
  • A light year is a measurement of ___________.<br><br> Which word best completes the sentence?
    8·2 answers
  • 8). How many moles of oxygen gas must be placed in a 35.0 L container in order
    5·1 answer
  • A lunar eclipse occurs when the Moon casts a shadow on the Earth.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!