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
EleoNora [17]
3 years ago
11

3) (2 points) The phenolic indicator (In-OH) has approximately the same pKa as a carboxylic acid. Which H is the most acidic pro

ton in In-OH

Chemistry
1 answer:
PilotLPTM [1.2K]3 years ago
7 0

Explanation:

In a phenolic indicator, the hydrogen atom is attached to more electronegative atom which is oxygen atom (O atom). So, when a phenolic indicator loses a proton then a conjugate base is formed.

This conjugate base is much more stable due to the resonance stabilization.

Therefore, we can conclude that proton attached to oxygen atom is much more stabilized than any other protons in a phenolic indicator.

You might be interested in
How many valence electrons do nitrogen atoms have
julsineya [31]
Five valence electrons for one nitrogen and 10 valence electrons for two nitrogens
4 0
3 years ago
A sample contains 16 mg of polonium-218. After 12 minutes, the sample will contain 1.0 mg of polonium-218. What is the half life
mariarad [96]

Answer:

Half-life = 3 minutes

Explanation:

Using the radioactive decay equation we can solve for reaction constant, k. And by using:

K = ln2 / Half-life

We can find half-life of polonium-218

Radioactive decay:

Ln[A] = -kt + ln [A]₀

Where:

[A] could be taken as mass of polonium after t time: 1.0mg

k is Reaction constant, our incognite

t are 12 min

[A]₀ initial amount of polonium-218: 16mg

Ln[A] = -kt + ln [A]₀

Ln[1.0mg] = -k*12min + ln [16mg]

-2.7726 = - k*12min

k = 0.231min⁻¹

Half-life = ln 2 / 0.231min⁻¹

<h3>Half-life = 3 minutes</h3>

5 0
2 years ago
4. Imagine you have a radioactive sample containing both Virtualium and decayed atoms of Virtualium. After analysis, you find it
Romashka [77]

My sample would be 4000 years old because on my graph, I had about 9 Virtualium left at trial 4 so I am guessing that it would be 4000 years old.

7 0
3 years ago
In compounds,has an oxidation number 1-​
alex41 [277]
Fluorine in compounds is always assigned an oxidation number of -1
5 0
3 years ago
What type of chemical reaction is CaCaI2 + F2 = CaF2 + CI2
Nostrana [21]

Answer:

I need help for this question

5 0
3 years ago
Other questions:
  • At standard pressure the boiling point of an unsaturated nano3(aq) solution increases when
    5·2 answers
  • What causes gas particles to collide with the walls of their containers?
    9·1 answer
  • What is the mass (in grams) of 9.83 × 1024 molecules of methanol (CH3OH)?
    9·1 answer
  • May somebody help me this question ? Please
    12·1 answer
  • URGENT! Will give 20 points.
    15·2 answers
  • Define "Homoglycan" and "Heteroglycan" and give an example of each
    15·1 answer
  • What is the difference between B-cell lymphocytes and T-cell lymphocytes?
    12·2 answers
  • What is the name of the solid that will form from the following reaction: a
    14·1 answer
  • For the reaction Cu2S(s)⇌2Cu+(aq)+S2−(aq)Cu2S(s)⇌2Cu+(aq)+S2−(aq), the equilibrium concentrations are as follows: [Cu+]=1.0×10−5
    13·1 answer
  • Between vertebrae<br>2-The backbone contains.......<br>c. joints<br>b. tendons<br>a. cartilages​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!