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
Akimi4 [234]
3 years ago
11

An acid with the general formula RCOOH is used to make a 0.10 M solution in water. The pH of this acid solution is measured as 3

.8. Calculate the extent of dissociation of this acid in the prepared solution. (The extent of dissociation is the fraction of the acid that is dissociated into the RCOO- anion and H3O cation in the aqueous solution.)
Chemistry
1 answer:
Sati [7]3 years ago
3 0

Answer:

0.159 \%

Explanation:

The acid will dissociate according to the reaction shown below:-

RCOOH + H_2O\rightleftharpoons RCOO^- + H_3O^+

Given that, pH=3.8

The concentration of can be determined from the expression fo pH as:-

pH = - log [H^+]

3.8  = - log [H^+]

[H^+] = 1.59\times 10^{-4}\ M

The initial concentration of RCOOH was 0.10 M, then the percent dissociation was- calculated as shown below:-

\% \ dissociation=\frac{1.59\times 10^{-4}}{0.10}\times 100=0.159\ \%

You might be interested in
How to balance an ionic equation BaCl2 + 2NH4CH3COO
Lorico [155]
Assuming that the reaction proceeds, the reaction would be a double displacement reaction. BaCl2 + 2NH4CH3COO -> Ba(CH3COO)2 + 2NH4Cl If the reaction occurs in an aqueous solution, the products are soluble in water, so the reaction is probably not that interesting to look at.
4 0
3 years ago
What would the mass number of sodium be? atomic number 11 number of protons 11 number of neutrons 12
Hunter-Best [27]

Answer:

12 neutrons.

Explanation:

4 0
2 years ago
What is the wavelength of gamma ray electromagnetic radiation with a frequency of 2.73x10^20 Hz?
Amanda [17]

Answer:

1.10 × 10⁻¹² m

General Formulas and Concepts:

<u>Chemistry - Atomic Structure</u>

Speed of Light = Wavelength times Frequency

  • c = λν
  • c = 3.0 × 10⁸ m/s

Explanation:

<u>Step 1: Define</u>

ν  = 2.73 × 10²⁰ Hz

<u>Step 2: Find wavelength</u>

3.0 × 10⁸ m/s = λ(2.73 × 10²⁰ Hz)

λ = 1.0989 × 10⁻¹² m

<u>Step 3: Check</u>

<em>We are given 3 sig figs. Follow sig fig rules.</em>

1.0989 × 10⁻¹² m ≈ 1.10 × 10⁻¹² m

8 0
3 years ago
What is the frequency of radiation whose wavelength is 0.73 nm?
Travka [436]
405 PHz
I might be wrong because that might be for 0.74 nm. We will see with out people answers
8 0
3 years ago
Which statement about Niels Bohr’s atomic model is true?
My name is Ann [436]
You have to provide options, otherwise people will not reply to your question.
6 1
3 years ago
Read 2 more answers
Other questions:
  • How do I fill this table?​
    9·1 answer
  • You have two 466.0 mL aqueous solutions. Solution A is a solution of silver nitrate, and solution B is a solution of potassium c
    9·1 answer
  • You replicate the CEC analysis of a secondary alcohol you performed in the lab using a reverse phase TLC plate producing the TLC
    5·1 answer
  • If I add water to oil what will happen
    5·1 answer
  • The end point indicates the completion of the titration by physical change (which is
    10·1 answer
  • Air has
    5·2 answers
  • How many moles of N20 gas would have a volume of 3.8 L at 460 mmHg and 77°C?
    10·1 answer
  • Write bohrs atomic theory postulate​
    9·1 answer
  • What's the major difference between carbon and other group IV elements, excluding allotropy​
    6·1 answer
  • Help. I need to finish this in time for school tomorrow
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!