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
MissTica
2 years ago
9

How does wavelength affect the pitch of a sound?

Chemistry
1 answer:
boyakko [2]2 years ago
3 0

Answer:

D

Explanation:

because the higher the wavelength the shorter the pitch and the shorter the wavelength the higher the pitch

You might be interested in
I WILL GIVE BRAINLIEST PLEASE HELP ME I NEED HELP!
AleksAgata [21]
I think the answer would be trenches but I’m sorry if I’m wrong
4 0
3 years ago
Stuck on question 22
Klio2033 [76]
The answer is c. because you have to increase concentration of h2
7 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
Which of the following shows how rate depends on concentrations of reactants?
Katarina [22]

Answer:

Rate = k(A)m(B)n

Explanation:

A.P.E.X.

6 0
3 years ago
This is a type of element that has many valence electrons, not a conductor.
cestrela7 [59]
What is the question
3 0
3 years ago
Other questions:
  • A chemical reaction occurs when one or more change into one or more new substances called
    15·1 answer
  • What are groups of two or more atoms bonded together that function as a single unit?
    13·1 answer
  • What is this plzzzzzzzzzzzzzzzzzzz help!!!!
    15·1 answer
  • Strike anywhere matches contain the compound tetraphosphorus trisulfide, which burns to form tetraphosphorus decaoxide and sulfu
    13·1 answer
  • Sodium has the atomic number 11. How many electrons are in a sodium ion, which has the symbol Na=?
    10·1 answer
  • In his experiment on spontaneous generation, Louis Pasteur changed only one thing between his experimental groups: whether or no
    13·1 answer
  • Plants and animals are what components ?
    5·2 answers
  • What kind of reaction is shown below?
    6·1 answer
  • Please help due soon.
    7·2 answers
  • A loaf of bread has a green substance growing on each slice. Which of the following types of spoilage could have occurred?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!