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
Mila [183]
3 years ago
10

How and why does 2-Naphthol differ from benzoic acid when adding NaHCO3

Chemistry
1 answer:
Ivahew [28]3 years ago
7 0

Answer:

2-naphtol is a weak acid and benzoic acid is a stronger acid. NaHCO3 is a weak base, that will only react with a strong acid like benzoic acid. 2-napthol is not soluble in sodium bicarbonate.

Explanation:

2-naphtol is a phenol. Phenol is made of a benzene attached to an OH group. So, it is a (big) organic molecule, and a little non-polar group. The conjugated (or non-localised) electrons in the benzene ring pull electrons away from the OH group. It makes it harder for the oxygen to steal the hydrogen's electrons and become O-.

A phenol is acidic in nature because of this H+ releasing. This will result in forming a phenoxide.

Benzoic acid is a carboxylic acid and is more acidic than a phenol. Since it's acid it will also release H+ ion, in this case to form carboxylate which is more stable than phenoxide.  The phenoxide is resonance stabilised.

The negative charge , in carboxylate, is delecoalised on the negatively charged O atom what makes it more stable than phenoxide. Compared to carboxylic acid.  ( or benzoic acid) phenol ( or 2-naphtol) is a weak acid.

NaHCO3 is a weak base and will only react with a strong acid like carboxylic acid. A naphtol is not strong enough to react with the weak base NaHCO3.

This means 2-naphtol is a weak acid and benzoic acid is a stronger acid. NaHCO3 is a weak base, that will only react with a strong acid like benzoic acid. 2-napthol is not soluble in sodium bicarbonate.

You might be interested in
The wastewater in your home goes to one of three places. It can run into a home septic system, it can go to a centralized sewage
NemiM [27]

Answer:

                                                 

Explanation:

5 0
3 years ago
Read 2 more answers
A sample of an unknown liquid has a volume of 24.0 mL and a mass of 6 g. What is its density? Show your work or explain how you
kobusy [5.1K]
The answer would be 0.25 g/mL. 
I determined the density by dividing the mass by the volume which gives you the density. D = mass/volume.
<span>6 g / 24 mL = 0.25 g/mL </span>
8 0
2 years ago
Read 2 more answers
The energy of a photon needed to cause ejection of an electron from a photoemissive metal is expressed as the sum of the binding
slega [8]

Answer:

Binding\ energy=43.43\times 10^{-20}\ J

Explanation:

Using the expression for the photoelectric effect as:

E=h\nu_0+\frac {1}{2}\times m\times v^2

Also, E=\frac {h\times c}{\lambda}

\nu_0=\frac {c}{\lambda_0}

Applying the equation as:

\frac {h\times c}{\lambda}=\frac {hc}{\lambda_0}+\frac {1}{2}\times m\times v^2

Where,  

h is Plank's constant having value 6.626\times 10^{-34}\ Js

c is the speed of light having value 3\times 10^8\ m/s

\lambda is the wavelength of the light being bombarded

Given, \lambda=4.00\times 10^{-7}\ m

\frac {hc}{\lambda_0} is the binding energy or threshold energy

\frac {1}{2}\times m\times v^2 is the kinetic energy of the electron emitted.  = 6.26\times 10^{-20}\ J

Thus, applying values as:

\frac{h\times c}{\lambda}=Binding\ Energy+Kinetic\ Energy

\frac{6.626\times 10^{-34}\times 3\times 10^8}{4.00\times 10^{-7}}\ J=Binding\ Energy+6.26\times 10^{-20}\ J

\frac{19.878}{10^{19}\times \:4}\ J=Binding\ Energy+6.26\times 10^{-20}\ J

49.69\times 10^{-20}\ J=Binding\ Energy+6.26\times 10^{-20}\ J

Binding\ energy=43.43\times 10^{-20}\ J

5 0
3 years ago
Scientific laws commonly answer which questions about the world?
borishaifa [10]

Answer:

How

Explanation: In science a person has to be curious on how things work. Key word how. Why makes sense but how is the better answer. How many is a specific question. But it doesn't involve the whole spectrum of science. What also doesn't make sense.

4 0
2 years ago
Is solid sodium + liquid water to dissolved hydroxide + gaseous hydroxide a single replacement reaction
saul85 [17]
2Na + 2H20 ----> 2NaOH + H2
5 0
3 years ago
Other questions:
  • Why can liquids change shape but solids cannot
    12·1 answer
  • When one form of energy is converted to another form in any physical or chemical change, energy input alwasy equals energy outpu
    14·1 answer
  • What Is Ethane? Can you help me?
    5·2 answers
  • Describe the difference between Al3+<br> and N3-
    15·1 answer
  • Where do subduction zones occur
    6·1 answer
  • Classify the following dienes and polyenes as isolated, conjugated, cumulated, or some combination of these classifications.
    6·1 answer
  • A variable that is not being directly tested during an experiment should be ____.
    14·1 answer
  • A biochemist would most likely study what ?
    10·1 answer
  • What's the major difference between carbon and other group IV elements, excluding allotropy​
    6·1 answer
  • Why might an earthquake have more than one intensity value
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!