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
nikdorinn [45]
2 years ago
12

10 Points! Help please!

Chemistry
1 answer:
icang [17]2 years ago
8 0
Your answer to that question is Fand N
You might be interested in
What contains elements with similar properties in the periodic table?
Nataly [62]
A) a column

example: earth alkaline metals
6 0
3 years ago
Read 2 more answers
How many moles of iron would be needed to react with 3.82 moles of<br> oxygen
Rashid [163]

Answer:

5.09

Explanation:

8 0
3 years ago
Taking advantage of their large differences in pKa values, describe how a mixture of phenol and benzoic acid in diethyl ether so
Marat540 [252]

Answer:

By adding bicarbonate.

Explanation:

The pka of the phenol (C₆H₅OH) is 10 and the pka of the benzoic acid (C₆H₅COOH) is 4, which means that the benzoic acid is a stronger acid than phenol, so if we want to separate phenol from benzoic acid in diethyl ether we need to first use a weak base that will react with benzoic acid and not with the phenol:  

C₆H₅-COOH + HCO₃⁻  ⇄  C₆H₅-COO⁻  +  H₂CO₃

C₆H₅-OH + HCO₃⁻  ⇄  no reaction

The reaction of the benzoic acid with bicarbonate will produce the benzoate ion that will be soluble in the aqueous layer, while the phenol will remain dissolved in the organic layer, so we can separate the two of them by the separation of the two immiscible layers.      

Having the two layers separated, the benzoic acid can be recovered from the aqueous layer by adding HCl:

C₆H₅-COO⁻ + HCl  ⇄  C₆H₅-COOH + Cl⁻

<u>This acid will precipitate from the aqueous solution, and the solid can be isolated by filtration</u>.  

The phenol in the organic layer can be dissolved into an aqueous layer by the adding of a strong base like NaOH:

C₆H₅-OH + OH⁻  ⇄  C₆H₅-O⁻ + H₂O

The phenoxide ion soluble in the aqueous layer can be recovered later by the adding of HCl, which will form the original phenol:

C₆H₅-O⁻ + HCl  ⇄  C₆H₅-OH + Cl⁻  

<u>The precipitated phenol can be isolated by filtration. </u>

This way we can separate a mixture of phenol and benzoic acid in diethyl ether solution.  

I hope it helps you!

6 0
3 years ago
How do flowering plants depend on other living things in order to reproduce?
Rufina [12.5K]

Answer:

They depend on people to water them and make sure they are by a window for sunlight

Explanation:

plants cant do these things by themselves

5 0
2 years ago
Read 2 more answers
I need help fast plzzzzzzzzz
sineoko [7]
What’s the question?
6 0
2 years ago
Other questions:
  • What role do catalysts play in chemical reactions?
    6·1 answer
  • Nuclear energy can be used to power _______. a. street lights b. businesses c. homes d. all of the above Please select the best
    9·1 answer
  • Hydrochloric is added to a beaker containing a piece of zinc. As a result, zinc chloride is formed and hydrogen gas is released.
    5·1 answer
  • Cellular respiration involves a reaction between glucose and oxygen to form
    10·2 answers
  • Phosphorus pentafluoride, PF5, acts as a __________ during the formation of the anion PF−6. Select the correct answer below: A.
    6·1 answer
  • Waves that can travel through empty space are called
    9·1 answer
  • 2FeO(s) ⇌ 2Fe(s) + O2(g) K eq = 1 x 10^-6 at 1000 K
    9·1 answer
  • Someone pleaseeeeee helppp
    14·1 answer
  • What attracts heat more? black or aluminum foil?​
    6·2 answers
  • Please select the word from the list that best fits the definition
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!