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
navik [9.2K]
3 years ago
7

What would be the major product if 1,4-dibromo-4-methylpentane was allowed to react with:

Chemistry
1 answer:
Levart [38]3 years ago
7 0

Answer : The correct answer for a) 4-bromo-2-iodo-4-methyl pentane and b)5-bromo-2-ethoxy-2-methyl pentane.

A) Reaction with NaI :

Reaction of alkyl halide with NaI is known as Finkelstein Reaction . The acetone is used as solvent . It involves bimolecular nucleophillic substitution rmechanism (SN²) . There is replecement of one halogen with other occurs .

The incoming Nucleophile(Nu⁻) (halide) attacks on carbon from back side , while the leaving group (halide) leaves the compound from front side , simultaneously. The product so formed have is inverted .(Image)

NaI releases I⁻ ion which act as nucelophile and attacks on C1 carbon and Br⁻ from C1 carbon is released . Out of two bromines at C1 and C4 carbons , C1 is primary carbon which is less sterically hindered while C-4 is tertiary carbon and sterically hindered . So it is easy for incoming Nu⁻ to attack on C1 carbon .So Br⁻ is repleaced by I⁻.

1,4-dibromo-4-methylpentane + NaI → 4-bromo-1-iodo-4-methylpentane

The product formed from reaction between 1,4-dibromo-4-methylpentane and NaI is 4-bromo-1-iodo-4-methylpentane . (Image)

B) Reaction with AgNO3 :

Reaction of alkyl halide with AgNO3 in ethanol takes place via SN¹ ( unimolecular nucleophilic substitution ) mechanism . In this leaving group(halide) leaves from alkyl halide forming an intermediate carbocation species . The incoming Nu⁻ attack on this carbocation.

AgNO3 reacts releases Ag⁺ion which abstract Br⁻ of C-4 carbon from 1,4-dibromo-4-methylpentane. THis forms tertiary carbocation which is more stable than carbocation formed by removal of Br from C-1 . The ethanol being more Nucleophilic than NO₃⁻ (from AgNO₃), attacks on this carbocation .(Image )

The product formed as a result is 5-bromo-2-ethoxy-2-methyl pentane.

You might be interested in
5. How many moles of tin (II) fluoride are there in 908 g?
Ede4ka [16]

Answer:5.78

Explanation:

5 0
3 years ago
Rank the following salts in order of decreasing pH of their 0.1 M aqueous solutions:FeCl₂ , FeCl₃ , MgCl₂ , KClO₂
Natalija [7]

The pH of the salts in decreasing order is FeCl2, FeCl3, MgCl2, KClO2.

What is pH?

pH is an expression of hydrogen ion concentration in water. Specifically, pH is the negative logarithm of hydrogen ion (H+) concentration (mol/L) in an aqueous solution:

pH = -log10(H+)

The term is used to indicate basicity or acidity of a solution on a scale of 0 to 14, with pH 7 being neutral.

As the concentration of H+ ions in solution increases, acidity increases and pH gets lower, below 7. When pH is above 7, the solution is basic.

Because pH is a logarithmic function, one unit change in pH indicates a 10x change in H+ concentration in that solution.

However, what is actually measured is hydrogen ion activity, not concentration.

To learn more about pH: brainly.com/question/13982975                                                                                #SPJ4

3 0
2 years ago
According to the following balanced equation, 2 formula units of Iron (III) Oxide (Fe2O3) can be formed by reacting 4 atoms of i
-Dominant- [34]
You have to use Avogadro's number (6.02x10^23 molecules/mole) to find the number of moles each reactant starts off with.
moles of Fe and O₂:
12 atoms/(6.02x10^23 atoms/mole)=1.99x10^-23 mol Fe
6 molecules/(6.02x10^23 molecules/mole)=9.967x10^-24 mol <span>O₂
</span>Then you find the limiting reagent by finding how much product each given amount of reactant can make.  Which ever one produces the least amount of product is the limiting reagent.
amount of Fe₂O₃ produced:
<span>(1.99x10^-23 mol Fe)x(2mol/4mol)= 9.967x10^-24mol Fe</span>₂O₃<span> 
</span>(9.967x10^-24 mol O₂)x(2mol/3mol)= 6.645x10^-24 mol Fe₂O₃<span> 
</span>since oxygen produces the leas amount of product, oxygen is the limiting reagent.  since we know that oxygen is the limiting reagent we can use the amount of product formed with oxygen to find the amount of iron used.
6.645x10^-24 mol Fe₂O₃x(4mol/2mol)=1.329x10^-23 mol Fe consumed
<span> find the amount left over by subtracting the original amount of Fe by the amount consumed in the reaction.
</span>1.993x10^-23-1.329x10^-23= 6.645x10^-23mol Fe left
 find the number of atoms by multiplying that by Avogadro's number.
<span>(6.645x10^-23mol)x(6.02x10^23 atoms/mol)=4 atoms
</span>therefore 4 atoms of Fe will be left over after the reaction happens.

I hope this helps.
8 0
3 years ago
Read 2 more answers
An athlete can run 4 m/s. How far can she run in 3 minutes?<br>​
shutvik [7]

Answer:

720

Explanation:

4 m/s

<u>60</u> seconds

                            = 180 seconds

<u>3</u> minutes

<u>4</u> m/s

                             = <u>720 m/s</u>

<u>180</u> seconds

5 0
3 years ago
12. Electrons are very small _<br> located outside the nucleus.
pogonyaev

Answer:

This is not a question but if it is a true or falso statement this is true.

Explanation:

7 0
3 years ago
Other questions:
  • Which is the second step in the dissolving process?
    13·2 answers
  • In Fe atom, which subshell experience the lowest effective nuclear charge and are hence the first removed upon ionization?
    15·1 answer
  • Which statement correctly describes a scientific theory? A. It is accepted as true indefinitely. B. It is based on repeated inve
    12·1 answer
  • What do the rows on the periodic table represent
    11·1 answer
  • Is this an alpha or beta decay?
    12·1 answer
  • Assuming that no equilibria other than dissolution are involved, calculate the concentration of all solute species in each of th
    5·1 answer
  • Use the given Nernst equation and reaction to solve this problem. What is the potential of this cell with the given conditions?
    6·1 answer
  • Na2CO3 + 2HCl -&gt; CO2 + H2O + 2NaCl 5.30g of NaCl was produced from 9.30g of Na2CO3. HCl was present in excess. What is the %
    5·1 answer
  • ASAP HELP
    12·2 answers
  • 1. Most of an atom is empty space, except for a tiny, dense core called the ___.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!