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Pachacha [2.7K]
3 years ago
8

Construct a three-step synthesis of 1,2-epoxycyclopentane from cyclopentanol by dragging the appropriate formulas into the bins.

Note that each bin will hold only one item, and not all of the given reagents or structures will be used.

Chemistry
1 answer:
zubka84 [21]3 years ago
3 0

Answer:

(1) Bromination, (2) E2 elimination and (3) epoxidation

Explanation:

  • In the first step, -OH group in cyclopentanol is replaced by more facile leaving group Br by treating cyclopentanol with PBr_{3}
  • In the second step, E2 elimination in presence of strong base e.g. NaOEt/EtOH produce cyclopentene
  • In the third step, treatment of cyclopentene with mCPBA produces 1,2-epoxycyclopentane
  • Full reaction scheme has been shown below

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If a 4L solution is 80% concentrated lime juice and 20% water, how much 30% concentrated lime juice must be added so that the co
miv72 [106K]

The volume of 30% concentrated lime juice that must be added to a 4L solution of 80% concentrated lime juice and 20% water is 6 L.

<h3>What are mixtures?</h3>

Mixtures are substances which are formed when two or more substances are physically combined together.

Mixtures are heterogenous in nature and the constituents can be easily separated.

The volume of 30% concentrated lime juice that must be added to a 4L solution of 80% concentrated lime juice and 20% water, so that the concentration of the resulting solution is 50% concentrated lime juice is determined as follows:

Let the volume of 30% lime juice required be x;

total volume of lime juice = 0.3x

For 80% lime juice, volume of lime juice = 0.8 * 4 = 3.2 L

New volume of lime juice = 4 + x

New amount of lime juice added = 3.2 + 0.3x

Also, new amount of lime juice = 0.5 * ( 4 + x)

3.2 + 0.3x = 0.5 * ( 4 + x)

0.2x = 1.2

x = 6 L

In conclusion, the volume to be added is obtained from the percent concentration.

Learn more about percent concentration at: brainly.com/question/19379932

#SPJ1

7 0
2 years ago
(C=12.01 amu, H=1.008 amu, O=16.00 amu)<br> [?] g/mol CH20
tekilochka [14]

CH₂O = C + 2.H + O

= 12.01 + 2 x 1.008 + 16

= 30.026 amu = 30.026 g/mol

8 0
2 years ago
What are differences between vaccines and antibotics
lara31 [8.8K]

Answer:

Explanation:

Antibiotics are chemical agents that are used to treat bacterial infections. ... Vaccines are used to prevent infection, particularly viral infections.

3 0
3 years ago
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Be sure to answer all parts. Give the name and the formula of the compound formed from the following elements: (a) bromine and r
MA_775_DIABLO [31]

Answer:

These are the chemical names and molecular formula of the compounds formed from these elements:

  1. Rubidium + Bromine = <em>Rubidium bromide, RbBr</em>
  2. Strontium + Sulphur = <em>Strontium sulfide, SrS</em>
  3. Barium and Chlorine = <em>Barium chloride, </em>BaCl_{2}<em />

7 0
3 years ago
What is 4.50+3.4+12.09 ?​
klasskru [66]

Answer:

19.99

Explanation:

The steps are what I did, so no need to do it the exact same!

1. Add 4.50 and 3.4

4.50 + 3.4 = 7.9

2. Add 7.9 and 12.09

7.9 + 12.09 = 19.99

Hope this helps!

8 0
3 years ago
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