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
IrinaVladis [17]
3 years ago
7

Calculate the ionization constant for the following acids or bases from the ionization constant of its conjugate base or conjuga

te acid: Keep your answer to 2 significant figures (CH3)3NH+
Chemistry
1 answer:
suter [353]3 years ago
8 0

Answer:

7.41 × 10⁻⁵

Explanation:

Let's consider the basic dissociation reaction of trimethylamine (CH₃)N).

(CH₃)N + H₂O = (CH₃)NH⁺ + OH⁻

According to Brönsted-Lowry, in this reaction (CH₃)N is a base and (CH₃)NH⁺ is its conjugate acid. The pKb for (CH₃)N is 9.87. We can calculate the pKa of (CH₃)NH⁺ using the following expression.

pKa + pKb = 14

pKa = 14 - pKb = 14 - 9.87 = 4.13

Then, we can calculate the acid dissociation constant for (CH₃)NH⁺ using the following expression.

pKa = -log Ka

Ka = antilog - pKa = antilog -4.13 = 7.41 × 10⁻⁵

You might be interested in
Assume that each tablet's mass was 1,000 mg, and remember that you used 0.200 L of water each time. Compute the reaction rate to
Scilla [17]

Answer:

For every temperature you use the formula given by the question.

at 3°C you have:

Reaction rate = (1000/0.2)/138.5 = 36 mg/L/sec

at 24°C you have:

Reaction rate = (1000/0.2)/34.2 = 146 mg/L/sec

at 40°C you have:

Reaction rate = (1000/0.2)/26.3 = 190 mg/L/sec

at 65°C you have:

Reaction rate = (1000/0.2)/14.2 = 352 mg/L/sec

Explanation:

3 0
3 years ago
Read 2 more answers
Choose all the answers that apply.
max2010maxim [7]

Answer: has properties similar to other elements in group 18, does not react readily with other elements, is part of the noble gas group

Explanation: I’ve done on edg before

6 0
3 years ago
What is the ratio of the side lengths on polygon FGHIJ to the corresponding side lengths on polygon ABCDE? Enter the ratio in th
alukav5142 [94]

Explanation:

this is the exact answer!!

7 0
3 years ago
Read 2 more answers
50 POINTS!!!!!!
sattari [20]
Remember that enzymes always accelerate chemical equations, depending on what the enzyme is consisted of. As the enzymes are burned the reaction or amount of chemical reactions decreases.
4 0
3 years ago
Which of the following excerpts from the story does NOT help create suspense?
Orlov [11]
The correct answer will be b
4 0
3 years ago
Other questions:
  • What are some similarities amongst elements within a group?
    13·1 answer
  • Is NaF a weak acid/base?
    5·1 answer
  • Which describes the correct procedure when converting a number from scientific notation to standard notation? A If the power of
    14·1 answer
  • Which of the following most accurately represents John Dalton’s model of the atom? A. a tiny, solid sphere with an unpredictable
    7·2 answers
  • The nonvolatile, nonelectrolyte glucose, C6H12O6 (180.2 g/mol), is soluble in water H2O. Calculate the osmotic pressure (in atm)
    13·1 answer
  • Which of the following pairs of elements are likely to form ionic compounds? Check all that apply. Check all that apply. magnesi
    7·1 answer
  • Which represents the ionization of a strong eletrolyte
    6·1 answer
  • A mixture of 40 mol % isopropanol in water is distilled at 1 atm by differential distillation until 70 mol % of the charge has b
    10·1 answer
  • Write three characteristics of mandleef's periodic table?​
    7·1 answer
  • An engine is running by burning coal. Which statement is correct?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!