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
suter [353]
3 years ago
15

What does the symbol ka mean in chemistry?

Chemistry
2 answers:
Dmitry_Shevchenko [17]3 years ago
4 0
 <span>Ka is an equilibrium constant for the partial ionization of "weak" acids in water.</span>
goblinko [34]3 years ago
3 0
Ka is an equilibrium constant for the partial ionization of "weak" acids in water. If such a weak acid is HOAc, the ionization is 
<span>HOAc = H+ + OAc- </span>
<span>and Ka= [H+][OAc-]/[HOAc] </span>

<span>Ka values range from about 10-2 to 10-14 Greater than 10-2, they are essentially strong acids, and below 10-14, they produce no more [H+] in water than would normally be observed.

</span>
You might be interested in
Write word equations for the reactions of a) magnesium with chlorine b) potassium with oxygen c) sodium with bromine d) carbon w
IRINA_888 [86]
A) Magnesium + Chlorine -> Magnesium chloride ( Mg + Cl2 -> MgCl2)

b) Potassium + Oxygen -> Potassium oxide
( 2K + O2 -> K2O )

c) Sodium + Bromine -> Sodium bromide
( 2Na + Br2 -> 2NaBr)

d) Carbon + Oxygen -> Carbon dioxide
( C + O2 -> CO2 ) This reaction occurs when heated.

4 0
2 years ago
Oxygen has 6 valence electrons. How many electrons does an atom of oxygen need to become stable?
SOVA2 [1]

Answer:

Two electrons

Explanation:

According to the octet rule, atoms must bond to each other, sharing electrons among themselves in an attempt to complete their valence shell (last layer of the electrosphere). In other words, an atom becomes stable when it has 8 electrons in its valence shell.

Oxygen atoms have six electrons in their valence shell, so to achieve the stability suggested by the octet rule (eight electrons), these atoms share two electrons, forming one oxygen gas (O₂) molecule.

8 0
3 years ago
Read 2 more answers
What is the molarity of a solution that contains 20 grams of CaBr2<br> in 0.50 liter of solution?
ELEN [110]

Answer:

2 M

Explanation:

mole weight of CaBr2 = 40 + 2 * 79.9 = 199.8 gm

20 gm is then   20/199.8 =.1 mole

.1 mole / .50 liter = 2 M

8 0
2 years ago
Archeologists have discovered the scapula ulna And metacarpals of an ancient human skeleton what part of the body have they foun
Kay [80]

The forelimb

Explanation:

The skeletal system is made up of the bones of the human body which provides protection for vital organs in the body. It also serve as a surface for the attachment of muscles through which movement is coordinated.

There are different bones in the body.

The forelimb is made up of the:

  • Scapula
  • Humerus
  • Ulna
  • Radius
  • Carpals
  • Metacarpals

These bones are jointed together to form our arm. If an archaeologists digs up any of the bones, he/she has unraveled some of the bones of the forelimb.

Learn more:

Archaeology brainly.com/question/4675659

#learnwithBrainly

3 0
3 years ago
Read 2 more answers
I don't know if I'm doing this right can someone help me out
Murrr4er [49]
YOUR DOING IT RIGHT CAUSE ITS RIGHT

4 0
3 years ago
Other questions:
  • The layering of eroded sediments is called:
    12·1 answer
  • Osmosis occurs when two solutions of different concentrations are separated by a semipermeable membrane. The membrane allows sol
    6·1 answer
  • Predict the moon phases
    6·1 answer
  • 1 arsenic atom is 6.24 times heavier than one carbon atom (12) thus arsenic has the Atomic mass of what ?
    14·1 answer
  • The chemical element found in all amino acids but not found in either carbohydrates or fats is
    14·1 answer
  • What is heat of vaporization?
    8·1 answer
  • When the population of organisms in an ecosystem is in balance, we consider the ecosystem to be: A. The ecosystem is in successi
    7·1 answer
  • Fill in the blanks (Balancing chemical reactions)<br>BRAINLIEST
    13·1 answer
  • Describe the changes that earths atmosphere has gone to overtime
    10·1 answer
  • Which of the following is the best example of potential energy?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!