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boyakko [2]
3 years ago
11

The second step of Experiment 5's multistep synthesis is an electrophilic aromatic substitution (EAS) reaction, similar to the r

eactions of our Klein text. What two key mechanistic steps are always involved in EAS reactions?
A. Loss of a leaving group and proton transfer.
B. Nucleophilic attack and loss of a leaving group.
C. Nucleophilic attack and carbocation rearrangement.
D. Nucleophilic attack and proton transfer.
E. Loss of a leaving group and carbocation rearrangement.
Chemistry
1 answer:
mafiozo [28]3 years ago
8 0

Answer:

C

Explanation:

C. Nucleophilic attack and carbocation rearrangement to form the most stable carbocation before the substitution reaction

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6 0
3 years ago
What is the pressure of a 20.0-L, gas at 25 ◦C, if after compressing to a volume of 4.0 L its pressure is 55.0 atm at the same t
tankabanditka [31]

Answer:The new volume will be

0.7 L

Explanation:

This is an example of Charles' law, sometimes called the temperature-volume law. It states that the volume of a gas is directly proportional to the Kelvin temperature, while pressure and amount are held constant.

The equation is

V

1

T

1

=

V

2

T

2

, where

V

is volume and

T

is temperature in Kelvins.

Known

V

1

=

0.5 L

T

1

=

20

∘

C

+

273.15

=

293 K

T

2

=

150

∘

C

+

273.15

=

423 K

Unknown

V

2

Solution

Rearrange the equation to isolate

V

2

. Substitute the known values into the equation and solve.

V

2

=

V

1

T

2

T

1

V

2

=

(

0.5

L

×

423

K

)

293

K

=

0.7 L

rounded to one significant figure

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The solution is included.

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