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
Effectus [21]
3 years ago
6

Arrange the following alkyl bromides in order from most reactive to least reactive in an SN2 reaction: 1-bromo-2-methylbutane, 1

-bromo-3-methylbutane, 2-bromo-2-methylbutane, and 1-bromopentane.
Rank the alkyl bromides from most reactive to least reactive. To rank items as equivalent, overlap them.
And what makes an alkyl bromide more reactive in this case?

Chemistry
2 answers:
xxMikexx [17]3 years ago
5 0
Primary alkyl halides tend to undergo the SN2 reaction mechanism in nucleophilic substitution since there is less steric hindrance for nucleophilic attack and the carbocations that they form are not as stable as those formed from tertiary alkyl halides. 


1-bromopentane > 1-bromo 2-methylbutane > <span>1-bromo-3-methylbutane</span>> 2-bromo 2-methylbutane
Law Incorporation [45]3 years ago
5 0

Answer:

See explanation

Explanation:

First, in order to know this it's neccesary to remember how a SN2 reaction takes place. A Sn2 reaction is a bimolecular concerted reaction where all bonds are broken and making in only one step.

For this to occur, we need a strong nucleophyle (such a strong base) and a substract with a great outgoing group (The halides are great leaving groups).

The nucleophyle attacks on the back side of the molecule with the bromine, and the result is a molecule with inverted configuration and the bromine is replaced by the nucleophyle.

However, this step is fast and concerted, and in order to do this faster, the reactant must be (Ideally) with no substituent, because if the molecule is bulky, the nucleophyle's attack to the back side is hard. This doesn't mean that it will not undergo, but it will be harder and slower.

Because of this reason, we can see that from all the alkyl bromides there, the least bulky is the 1-bromopentane, so this will be the more reactive in Sn2, followed by 1-bromo-methylbutane, then the 1-bromo-2-methylbutane and finally the 2 - bromo - 2 - methylpentane.

In the picture, you have the structures of these molecules, so you can see how the steric hindrance affects this.

You might be interested in
How many neutrons are there in 8 molecules of <br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B19%7D%7B9%7D%20f2" id="TexFormu
slega [8]

Answer:

128 neutrons

Explanation:

<em>How many neutrons are there in 8 molecules of </em>^{19} _9 F_2<em>?</em>

Step 1: Calculate the number of neutrons in 1 atom of F.

The atomic number (z) of F is 9 and its mass number (A) is 19. We can calculate the number of neutrons using the following expression.

n⁰ = A - Z = 19 - 9 = 10

Step 2: Calculate the number of neutrons in 1 molecule of F₂.

1 molecule of F₂ contains 2 atoms of F. The number of neutrons in  1 molecule of F₂ is:

(8 n⁰/1 atom F) × (2 atom F/1 molecule F₂) = 16 n⁰/1 molecule F₂

Step 3: Calculate the number of neutrons in 8 molecules of F₂

8 molecule F₂ × 16 n⁰/1 molecule F₂ = 128 n⁰

4 0
3 years ago
List at least two chemical reactions that resulted in the yellow orange or red preList at least two chemical reactions that resu
GenaCL600 [577]

Answer:

2,4-dinitrophenylhydrazine (Brady’s reagent)

Explanation:

5 0
3 years ago
Th e enzyme-catalyzed conversion of a substrate at 25°C has a Michaelis constant of 0.045 mol dm−3. Th e rate of the reaction is
Elis [28]

Answer:

1.620\times 10^{-3} mol/dm^3 sis the maximum velocity of this reaction.

Explanation:

Michaelis–Menten 's equation:

v=V_{max}\times \frac{[S]}{K_m+[S]}=k_{cat}[E_o]\times \frac{[S]}{K_m+[S]}

V_{max}=k_{cat}[E_o]

v = rate of formation of products =

[S] = Concatenation of substrate

[K_m] = Michaelis constant

V_{max} = Maximum rate achieved

k_{cat} = Catalytic rate of the system

[E_o] = Initial concentration of enzyme

We have :

K_m=0.045 mol/dm^3

v=1.15 mmol/dm^3 s=1.15\times 10^{-3} mol/dm^3 s

[S]=0.110 mol/dm^3

v=V_{max}\times \frac{[S]}{K_m+[S]}

1.15\times 10^{-3} mol/dm^3 s=V_{max}\times \frac{0.110 mol/dm^3}{[(0.045 mol/dm^3)+(0.110 mol/dm^3)]}

V_{max}=\frac{1.15\times 10^{-3} mol/dm^3 s\times [(0.045 mol/dm^3)+(0.110 mol/dm^3)]}{0.110 mol/dm^3}=1.620\times 10^{-3} mol/dm^3 s

1.620\times 10^{-3} mol/dm^3 sis the maximum velocity of this reaction.

8 0
3 years ago
What is the molarity of a solution made by mixing 50.0 g of magnesium nitrate, Mg(NO3)2, in enough water to make 250. mL of solu
Ira Lisetskai [31]
............................

8 0
3 years ago
Potassium carbonate, K 2CO 3, sodium iodide, NaI, potassium bromide, KBr, methanol, CH 3OH, and ammonium chloride, NH 4Cl, are s
slava [35]

Answer:

Potassium carbonate (K₂CO₃)

Explanation:

The compounds dissociate into ions in water, as follows:

K₂CO₃ → 2 K⁺ + CO₃⁻    ⇒ 3 dissolved particles per mole

NaI → Na⁺ + I⁻    ⇒ 2 dissolved particles per mole

KBr → K⁺ + Br⁻   ⇒ 2 dissolved particles per mole

CH₃OH → CH₃O⁻ + H⁺  ⇒ 2 dissolved particles per mole

NH₄Cl → NH₄⁺ + Cl⁻   ⇒ 2 dissolved particles per mole

Therefore, the largest number of dissolved particles per mole of dissolved solute is produced by potassium carbonate (K₂CO₃).

3 0
3 years ago
Other questions:
  • If it is raining it is ok for the driver to operate the lift from inside the vehicle.
    9·1 answer
  • Why doesn't potassium fluoride conduct electricity as a solid?
    8·1 answer
  • When a solvent can dissolve no more of a solid solute at a specific temperature, we say the solution is ________.
    14·2 answers
  • Describe how a mixture of iron filings,sand and iodine can be separated​
    13·1 answer
  • Please Help Me! Question is on link down below!
    7·1 answer
  • Wich symbols represent SI units for temperature?
    9·2 answers
  • What is the name of an atoms inner region
    8·1 answer
  • How many grams of molybdenum(Mo) are in 2.68E24 atoms of Mo?
    8·1 answer
  • The mass of a water balloon is 2 kilograms. The speed that the water ballon is traveling when it hits the ground is 20 meters/se
    6·1 answer
  • A student proposes creating a buffer by dissolving 0.010mol of NaClO4(s) in 100.mL of 0.100MHClO4. Explain why the resulting sol
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!