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
Feliz [49]
3 years ago
5

The Ka of carbonic acid is 4.3 x 10-7.

Chemistry
1 answer:
ratelena [41]3 years ago
3 0

Answer:

poor hydrogen-ion donor

Explanation:

Acid dissociation constant constant chemistry is the equilibrium constant of the dissociation reaction of an acid, it is denoted by Ka. This equilibrium constant is a measure of the strength of an acid in a solution.

Note these as a rule of thumb:

When Ka is large, the dissociation of the acid is favored.

When Ka is small, the acid does not dissociate to a large extent.

Hence, a Ka of 4.3 x 10-7 shows a weak acid. A weak acid is a poor hydrogen ion donor because it does not dissociate to a large extent in solution.

You might be interested in
Which of the pollowing is
34kurt

Answer:

At transform plate boundaries, two plates move in opposite direction. Transform faults are the site of massive earthquakes. The San Andreas Fault is the boundary between the Pacific and North American plates.

6 0
2 years ago
Which statement correctly describes protons?
Dominik [7]
We don't know what statement you want us to choose from. But, protons have a positive charge, and they are what makes an atom a certain atom.
5 0
3 years ago
Read 2 more answers
Calculate the percentrage of neutral form of aspirin that is present in the stomach ph 1.
Korolek [52]

Answer:

The 99.68% of the aspirin is present in the neutral form

Explanation:

Aspirin, Acetylsalicylic acid, is a weak acid with pKa = 3.5

Using Henderson-Hasselbalch equation:

pH = pKa + log [A⁻] / [HA]

<em>Where [A⁻] is the ionized form and HA the neutral form of the acid</em>

<em />

Replacing with a pH of stomach of 1.0:

1.0 = 3.5 + log [A⁻] / [HA]

-2.5 = log [A⁻] / [HA]

3.16x10⁻³ = [A⁻] / [HA] <em>(1)</em>

<em />

A 100% of aspirin is = [A⁻] + [HA]

100 = [A⁻] + [HA] <em>(2)</em>

<em></em>

Replacing (2) in (1)

3.16x10⁻³ = 100 - [HA] / [HA]

3.16x10⁻³[HA] = 100 - [HA]

1.00316 [HA] = 100

[HA] = 99.68%

<h3>The 99.68% of the aspirin is present in the neutral form</h3>
8 0
3 years ago
*TIMED PLEASE HELP!*
EleoNora [17]

This is the actual answer

1

2

4

3

7 0
3 years ago
Read 2 more answers
In the energy diagram, which number represents the potential energy of the products?
Lesechka [4]
I say Answer choice A because it is a straight line and it hasn't gone under all those reactions yet. 
6 0
3 years ago
Read 2 more answers
Other questions:
  • To a 0.0001 m solution of mg(no3)2, naoh was added to a final concentration of 0.001m did a precipitate form?
    7·1 answer
  • How many grams of KCl are needed to prepare 1.00 L of a 2.00 M solution
    9·1 answer
  • What is the frequency of light for which the wavelength is 7.1 × 102 nm?
    13·1 answer
  • In an experiment using a calorimeter, the following data were obtained: what is the total number of joules absorbed by the water
    6·1 answer
  • Two objects in contact are in thermal equilibrium if their particles possess the same average kinetic energy. TRUE FALSE
    15·2 answers
  • Which process takes place when large rocks crumble due to oxidation?
    9·2 answers
  • Organic chemistry is a science based on the study of
    12·1 answer
  • What kind of energy is required for photosynthesis to occur​
    7·2 answers
  • A macromolecule is added at a concentration of 18 g L−1 to water at a temperature of 10°C. If the resulting osmotic pressure of
    13·1 answer
  • Will give brainlsit need answers asap!
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!